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Volumn 70, Issue , 2015, Pages 50-154

Synthesis, electron transport properties of transition metal nitrides and applications

Author keywords

Electron transport; Layered compounds; Nanocrystalline; Superconductor; Transition metal nitrides

Indexed keywords

CHEMICAL BONDS; CRYSTAL ATOMIC STRUCTURE; ELECTRON TRANSPORT PROPERTIES; ELECTRONIC PROPERTIES; ELECTRONIC STRUCTURE; INDIUM COMPOUNDS; NANOCRYSTALS; NITRIDES; NITROGEN; PARTICLE SIZE; REFRACTORY METAL COMPOUNDS; SUPERCONDUCTING MATERIALS; TRANSPORT PROPERTIES; X RAY PHOTOELECTRON SPECTROSCOPY;

EID: 84919772580     PISSN: 00796425     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.pmatsci.2014.11.004     Document Type: Review
Times cited : (155)

References (308)
  • 4
    • 0036464859 scopus 로고    scopus 로고
    • Synthesis and magnetic studies of nanocrystalline nickel nitride material
    • N.S. Gajbhiye, R.S. Ningthoujam, and J. Weissmuller Synthesis and magnetic studies of nanocrystalline nickel nitride material Phys Status Solidi (a) 189 2002 691 695
    • (2002) Phys Status Solidi (A) , vol.189 , pp. 691-695
    • Gajbhiye, N.S.1    Ningthoujam, R.S.2    Weissmuller, J.3
  • 5
    • 84860247882 scopus 로고    scopus 로고
    • Variation of intrinsic magnetic parameters of single domain Co-N interstitial nitrides synthesized via hexa-ammine cobalt nitrate route
    • R.S. Ningthoujam, R.N. Panda, and N.S. Gajbhiye Variation of intrinsic magnetic parameters of single domain Co-N interstitial nitrides synthesized via hexa-ammine cobalt nitrate route Mater Chem Phys 134 2012 377 381
    • (2012) Mater Chem Phys , vol.134 , pp. 377-381
    • Ningthoujam, R.S.1    Panda, R.N.2    Gajbhiye, N.S.3
  • 7
    • 34547344974 scopus 로고    scopus 로고
    • Thermal transformation of metal oxide nanoparticles into nanocrystalline metal nitrides using cyanamide and urea as nitrogen source
    • J. Buha, I. Djerdj, M. Antonietti, and M. Niederberger Thermal transformation of metal oxide nanoparticles into nanocrystalline metal nitrides using cyanamide and urea as nitrogen source Chem Mater 19 2007 3499 3505
    • (2007) Chem Mater , vol.19 , pp. 3499-3505
    • Buha, J.1    Djerdj, I.2    Antonietti, M.3    Niederberger, M.4
  • 8
    • 72449175790 scopus 로고    scopus 로고
    • Metal nitride and metal carbide nanoparticles by a soft urea pathway
    • C. Giordano, C. Erpen, W. Yao, B. Milke, and M. Antonietti Metal nitride and metal carbide nanoparticles by a soft urea pathway Chem Mater 21 2009 5136 5144
    • (2009) Chem Mater , vol.21 , pp. 5136-5144
    • Giordano, C.1    Erpen, C.2    Yao, W.3    Milke, B.4    Antonietti, M.5
  • 9
    • 58149152849 scopus 로고    scopus 로고
    • Synthesis of ternary metal nitride nanoparticles using mesoporous carbon nitride as reactive template
    • A. Fischer, J.O. Müller, M. Antonietti, and A. Thomas Synthesis of ternary metal nitride nanoparticles using mesoporous carbon nitride as reactive template ACS Nano 2 2009 2489 2496
    • (2009) ACS Nano , vol.2 , pp. 2489-2496
    • Fischer, A.1    Müller, J.O.2    Antonietti, M.3    Thomas, A.4
  • 11
    • 84872893288 scopus 로고    scopus 로고
    • Growth of dilute nitride GaAsN/GaAs heterostructure nanowires on Si substrates
    • Y. Araki, M. Yamaguchi, and F. Ishikawa Growth of dilute nitride GaAsN/GaAs heterostructure nanowires on Si substrates Nanotechnology 24 2013 065601-7
    • (2013) Nanotechnology , vol.24 , pp. 065601-065607
    • Araki, Y.1    Yamaguchi, M.2    Ishikawa, F.3
  • 12
    • 0030854137 scopus 로고    scopus 로고
    • Synthesis of gallium nitride nanorods through a carbon nanotube-confined reaction
    • W. Han, S. Fan, Q. Li, and Y. Hu Synthesis of gallium nitride nanorods through a carbon nanotube-confined reaction Science 277 1997 1287 1289
    • (1997) Science , vol.277 , pp. 1287-1289
    • Han, W.1    Fan, S.2    Li, Q.3    Hu, Y.4
  • 13
    • 72249111969 scopus 로고    scopus 로고
    • Homoleptic gadolinium guanidinate: A single source precursor for metal-organic chemical vapor deposition of gadolinium nitride thin films
    • A.P. Milanov, T.B. Thiede, A. Devi, and R.A. Fischer Homoleptic gadolinium guanidinate: a single source precursor for metal-organic chemical vapor deposition of gadolinium nitride thin films J Am Chem Soc 131 2009 17062 17063
    • (2009) J Am Chem Soc , vol.131 , pp. 17062-17063
    • Milanov, A.P.1    Thiede, T.B.2    Devi, A.3    Fischer, R.A.4
  • 14
    • 0001607557 scopus 로고    scopus 로고
    • Recent developments in nitride chemistry
    • R. Niewa, and F.J. DiSalvo Recent developments in nitride chemistry Chem Mater 10 1998 2733 2752
    • (1998) Chem Mater , vol.10 , pp. 2733-2752
    • Niewa, R.1    Disalvo, F.J.2
  • 15
    • 84873911949 scopus 로고    scopus 로고
    • Flow curve determination on dc-MS and HPPMS CrAlN coatings
    • K. Bobzin, N. Bagcivan, S. Theiß, and J. Perne Flow curve determination on dc-MS and HPPMS CrAlN coatings J Phys D: Appl Phys 46 2013 084006-7
    • (2013) J Phys D: Appl Phys , vol.46 , pp. 084006-084007
    • Bobzin, K.1    Bagcivan, N.2    Theiß, S.3    Perne, J.4
  • 16
    • 84871560523 scopus 로고    scopus 로고
    • Influence of substrate nitridation temperature on epitaxial alignment of GaN nanowires to Si(1 1 1) substrate
    • A. Wierzbicka, Z.R. Zytkiewicz, S. Kret, J. Borysiuk, P. Dluzewski, and M. Sobanska Influence of substrate nitridation temperature on epitaxial alignment of GaN nanowires to Si(1 1 1) substrate Nanotechnology 24 2013 035703-7
    • (2013) Nanotechnology , vol.24 , pp. 035703-035707
    • Wierzbicka, A.1    Zytkiewicz, Z.R.2    Kret, S.3    Borysiuk, J.4    Dluzewski, P.5    Sobanska, M.6
  • 17
    • 84872363622 scopus 로고    scopus 로고
    • Superconducting niobium nitride thin films deposited by metal organic plasma-enhanced atomic layer deposition
    • M. Ziegler, L. Fritzsch, J. Day, S. Linzen, S. Anders, and J. Toussaint Superconducting niobium nitride thin films deposited by metal organic plasma-enhanced atomic layer deposition Supercond Sci Technol 26 2013 025008-5
    • (2013) Supercond Sci Technol , vol.26 , pp. 025008-025015
    • Ziegler, M.1    Fritzsch, L.2    Day, J.3    Linzen, S.4    Anders, S.5    Toussaint, J.6
  • 18
  • 19
    • 84870164487 scopus 로고    scopus 로고
    • Template-free synthesis of mesoporous transition metal nitride materials from ternary cadmium transition metal oxides
    • M. Yang, and F.J. DiSalvo Template-free synthesis of mesoporous transition metal nitride materials from ternary cadmium transition metal oxides Chem Mater 24 2012 4406 4409
    • (2012) Chem Mater , vol.24 , pp. 4406-4409
    • Yang, M.1    Disalvo, F.J.2
  • 22
    • 84984136738 scopus 로고
    • Über Nitridhalogenide des titans and zircons
    • R. Juza, and J. Heners Über Nitridhalogenide des titans and zircons Z Anorg Allg Chem 332 1964 159 172
    • (1964) Z Anorg Allg Chem , vol.332 , pp. 159-172
    • Juza, R.1    Heners, J.2
  • 23
    • 84907470398 scopus 로고
    • Die Kristallstruktur von β-ZrNCl and β-ZrNBr
    • R. Juza, and H. Friedrichsen Die Kristallstruktur von β-ZrNCl and β-ZrNBr Z Anorg Allg Chem 332 1964 173 178
    • (1964) Z Anorg Allg Chem , vol.332 , pp. 173-178
    • Juza, R.1    Friedrichsen, H.2
  • 25
    • 0032498964 scopus 로고    scopus 로고
    • Superconductivity at 25.5 K in electron-doped layered hafnium nitride
    • S. Yamanaka, K.I. Hotehama, and H. Kawaji Superconductivity at 25.5 K in electron-doped layered hafnium nitride Nature 392 1998 580 582
    • (1998) Nature , vol.392 , pp. 580-582
    • Yamanaka, S.1    Hotehama, K.I.2    Kawaji, H.3
  • 29
    • 84859621828 scopus 로고    scopus 로고
    • Layered boron nitride as a release layer for mechanical transfer of GaN-based devices
    • Y. Kobayashi, K. Kumakura, T. Akasaka, and T. Makimoto Layered boron nitride as a release layer for mechanical transfer of GaN-based devices Nature 484 2012 223 227
    • (2012) Nature , vol.484 , pp. 223-227
    • Kobayashi, Y.1    Kumakura, K.2    Akasaka, T.3    Makimoto, T.4
  • 30
    • 78049366766 scopus 로고    scopus 로고
    • Transferable GaN layers grown on ZnO-coated graphene layers for optoelectronic devices
    • K. Chung, C.H. Lee, and G.C. Yi Transferable GaN layers grown on ZnO-coated graphene layers for optoelectronic devices Science 330 2010 655 657
    • (2010) Science , vol.330 , pp. 655-657
    • Chung, K.1    Lee, C.H.2    Yi, G.C.3
  • 31
    • 84865461457 scopus 로고    scopus 로고
    • Graphene and boron nitride lateral heterostructures for atomically thin circuitry
    • M.P. Levendorf, C.J. Kim, L. Brown, P.Y. Huang, R.W. Havener, and D.A. Muller Graphene and boron nitride lateral heterostructures for atomically thin circuitry Nature 488 2012 627 632
    • (2012) Nature , vol.488 , pp. 627-632
    • Levendorf, M.P.1    Kim, C.J.2    Brown, L.3    Huang, P.Y.4    Havener, R.W.5    Muller, D.A.6
  • 32
    • 0026822033 scopus 로고
    • Synthesis of dense silicon-based ceramics at low temperatures
    • R. Riedel, G. Passing, H. Schönfelder, and R.J. Brook Synthesis of dense silicon-based ceramics at low temperatures Nature 355 1992 714 717
    • (1992) Nature , vol.355 , pp. 714-717
    • Riedel, R.1    Passing, G.2    Schönfelder, H.3    Brook, R.J.4
  • 36
    • 40249103745 scopus 로고    scopus 로고
    • Electrochemical deposition of metal nitrides films in molten chloride system
    • Mantz RA, Trulove PC, De Long HC, Stafford GR, Hagiwara M, Costa DA, editors Electrochemical Society Inc., New Jersey, USA
    • Goto T, Niki A, Tsujimura H, Ito Y. Electrochemical deposition of metal nitrides films in molten chloride system. In: Mantz RA, Trulove PC, De Long HC, Stafford GR, Hagiwara M, Costa DA, editors. Molten salts. XIV: proceedings of the international symposium, Electrochemical Society Inc., New Jersey, USA; 2006.
    • (2006) Molten Salts. XIV: Proceedings of the International Symposium
    • Goto, T.1    Niki, A.2    Tsujimura, H.3    Ito, Y.4
  • 40
    • 0000498802 scopus 로고
    • The occurrence and the crystal structure of α″-iron nitride; A new type of interstitial alloy formed during the tempering of nitrogen-martensite
    • K.H. Jack The occurrence and the crystal structure of α″-iron nitride; a new type of interstitial alloy formed during the tempering of nitrogen-martensite Proc R Soc A 208 1951 216 224
    • (1951) Proc R Soc A , vol.208 , pp. 216-224
    • Jack, K.H.1
  • 41
    • 21544444793 scopus 로고
    • New magnetic material having ultrahigh magnetic moment
    • T.K. Kim, and M. Takahashi New magnetic material having ultrahigh magnetic moment Appl Phys Lett 20 1972 492 494
    • (1972) Appl Phys Lett , vol.20 , pp. 492-494
    • Kim, T.K.1    Takahashi, M.2
  • 44
    • 36549092261 scopus 로고
    • Large magnetization induced in single crystalline iron films by high-dose nitrogen implantation
    • K. Nakajima, and S. Okamoto Large magnetization induced in single crystalline iron films by high-dose nitrogen implantation Appl Phys Lett 56 1990 92 93
    • (1990) Appl Phys Lett , vol.56 , pp. 92-93
    • Nakajima, K.1    Okamoto, S.2
  • 49
    • 0029797765 scopus 로고    scopus 로고
    • Stability of carbon nitride materials at high pressure and temperature
    • A.J. Stevens, T. Koga, C.B. Agee, M.J. Aziz, and C.M. Lieber Stability of carbon nitride materials at high pressure and temperature J Am Chem Soc 118 1996 10900 10901
    • (1996) J Am Chem Soc , vol.118 , pp. 10900-10901
    • Stevens, A.J.1    Koga, T.2    Agee, C.B.3    Aziz, M.J.4    Lieber, C.M.5
  • 50
  • 52
    • 0002325574 scopus 로고
    • Regularity in crystal structure in hydrides, borides, carbides and nitrides of transition elements
    • G. Hagg Regularity in crystal structure in hydrides, borides, carbides and nitrides of transition elements Z Phys Chem 12B 1931 33 56
    • (1931) Z Phys Chem , vol.12 B , pp. 33-56
    • Hagg, G.1
  • 53
    • 0001428089 scopus 로고
    • Electronic structure of substoichiometric carbides and nitrides of titanium and vanadium
    • P. Marksteiner, P. Weinberger, A. Neckel, R. Zeller, and P.H. Dederichs Electronic structure of substoichiometric carbides and nitrides of titanium and vanadium Phys Rev B 33 1986 812 822
    • (1986) Phys Rev B , vol.33 , pp. 812-822
    • Marksteiner, P.1    Weinberger, P.2    Neckel, A.3    Zeller, R.4    Dederichs, P.H.5
  • 54
    • 0024767475 scopus 로고
    • Electronic structure of stoichiometric and substoichiometric vanadium nitrade from photoelectron spectroscopy
    • G. Indelkofer, J.M. Mariot, W. Lengauer, E. Beauprez, P. Oelhafen, and C.F. Hague Electronic structure of stoichiometric and substoichiometric vanadium nitrade from photoelectron spectroscopy Solid State Commun 72 1989 419 423
    • (1989) Solid State Commun , vol.72 , pp. 419-423
    • Indelkofer, G.1    Mariot, J.M.2    Lengauer, W.3    Beauprez, E.4    Oelhafen, P.5    Hague, C.F.6
  • 55
    • 0000693331 scopus 로고    scopus 로고
    • Mechanism and control of the metal-to-insulator transition in rocksalt tantalum nitride
    • L. Yu, C. Stampfl, D. Marshall, T. Eshrich, V. Narayanan, and J.M. Rowell Mechanism and control of the metal-to-insulator transition in rocksalt tantalum nitride Phys Rev B 65 2002 245110-5
    • (2002) Phys Rev B , vol.65 , pp. 245110-245115
    • Yu, L.1    Stampfl, C.2    Marshall, D.3    Eshrich, T.4    Narayanan, V.5    Rowell, J.M.6
  • 57
    • 0029309456 scopus 로고
    • The preparation and characterization of a new layered yttrium nickel borocarbide
    • L. Rukang, X. Chaoshui, Z. Hong, L. Bin, and Y. Li The preparation and characterization of a new layered yttrium nickel borocarbide J Alloys Compd 223 1995 53 55
    • (1995) J Alloys Compd , vol.223 , pp. 53-55
    • Rukang, L.1    Chaoshui, X.2    Hong, Z.3    Bin, L.4    Li, Y.5
  • 58
    • 0032498964 scopus 로고    scopus 로고
    • Superconductivity at 25.5 K in electron-doped layered hafnium nitride
    • S. Yamanaka, K.I. Hotehama, and H. Kawaji Superconductivity at 25.5 K in electron-doped layered hafnium nitride Nature 392 1998 580 582
    • (1998) Nature , vol.392 , pp. 580-582
    • Yamanaka, S.1    Hotehama, K.I.2    Kawaji, H.3
  • 62
    • 0347653413 scopus 로고    scopus 로고
    • Saturation of electrical resistivity
    • O. Gunnarsson, M. Calandra, and J.E. Han Saturation of electrical resistivity Rev Mod Phys 75 2003 1085 1099
    • (2003) Rev Mod Phys , vol.75 , pp. 1085-1099
    • Gunnarsson, O.1    Calandra, M.2    Han, J.E.3
  • 63
    • 0000591321 scopus 로고
    • Saturation of the high-temperature normal-state electrical resistivity of superconductors
    • Z. Fisk, and G.W. Webb Saturation of the high-temperature normal-state electrical resistivity of superconductors Phys Rev Lett 36 1976 1084 1086
    • (1976) Phys Rev Lett , vol.36 , pp. 1084-1086
    • Fisk, Z.1    Webb, G.W.2
  • 67
    • 33846280297 scopus 로고
    • An accurate analytic representation for the Bloch-Gruneisen integral
    • M. Deutsch An accurate analytic representation for the Bloch-Gruneisen integral J Phys A: Math Gen 20 1987 L811 L813
    • (1987) J Phys A: Math Gen , vol.20 , pp. 811-L813
    • Deutsch, M.1
  • 68
    • 0015632525 scopus 로고
    • Electrical conduction in concentrated disordered transition metal alloys
    • J.H. Mooij Electrical conduction in concentrated disordered transition metal alloys Phys Status Solidi (a) 17 1973 521 530
    • (1973) Phys Status Solidi (A) , vol.17 , pp. 521-530
    • Mooij, J.H.1
  • 69
    • 35949022443 scopus 로고
    • Nonuniversality of the Mooij correlation - The temperature coefficient of electrical resistivity of disordered metals
    • C.C. Tsuei Nonuniversality of the Mooij correlation - the temperature coefficient of electrical resistivity of disordered metals Phys Rev Lett 57 1986 1943 1946
    • (1986) Phys Rev Lett , vol.57 , pp. 1943-1946
    • Tsuei, C.C.1
  • 71
    • 0040793613 scopus 로고
    • Disordered electronic systems
    • P.A. Lee, and T.V. Ramkrishnan Disordered electronic systems Rev Mod Phys 57 1985 287 337
    • (1985) Rev Mod Phys , vol.57 , pp. 287-337
    • Lee, P.A.1    Ramkrishnan, T.V.2
  • 73
    • 12044250476 scopus 로고
    • The Anderson-Mott transition
    • D. Belitz, and T.R. Kirkpatrick The Anderson-Mott transition Rev Mod Phys 66 1994 261 380
    • (1994) Rev Mod Phys , vol.66 , pp. 261-380
    • Belitz, D.1    Kirkpatrick, T.R.2
  • 78
    • 39249085460 scopus 로고    scopus 로고
    • Disorder and transport in cuprates: Weak localization and magnetic contributions
    • F. Rullier-Albenque, H. Alloul, and R. Tourbot Disorder and transport in cuprates: weak localization and magnetic contributions Phys Rev Lett 87 2001 157001-4
    • (2001) Phys Rev Lett , vol.87 , pp. 157001-157004
    • Rullier-Albenque, F.1    Alloul, H.2    Tourbot, R.3
  • 83
    • 0020477524 scopus 로고
    • Metal-insulator transitions
    • N.F. Mott Metal-insulator transitions Proc R Soc Lond A 382 1982 1 24
    • (1982) Proc R Soc Lond A , vol.382 , pp. 1-24
    • Mott, N.F.1
  • 84
    • 26744449026 scopus 로고
    • Magnetoresistance of weakly disordered electrons
    • P.A. Lee, and T.V. Ramakrishnan Magnetoresistance of weakly disordered electrons Phys Rev B 26 1982 4009 4012
    • (1982) Phys Rev B , vol.26 , pp. 4009-4012
    • Lee, P.A.1    Ramakrishnan, T.V.2
  • 86
    • 84887173907 scopus 로고    scopus 로고
    • Low-temperature resistivity minimum in ceramic manganites
    • E. Rozenberg, M. Auslender, I. Felner, and G. Gorodetsky Low-temperature resistivity minimum in ceramic manganites J Appl Phys 88 2000 2578 2582
    • (2000) J Appl Phys , vol.88 , pp. 2578-2582
    • Rozenberg, E.1    Auslender, M.2    Felner, I.3    Gorodetsky, G.4
  • 90
    • 0036572529 scopus 로고    scopus 로고
    • Electrical resistivity study of La, B doped nanocrystalline superconducting vanadium nitride
    • R.S. Ningthoujam, N. Sudhakar, K.P. Rajeev, and N.S. Gajbhiye Electrical resistivity study of La, B doped nanocrystalline superconducting vanadium nitride J Appl Phys 91 2002 6051 6056
    • (2002) J Appl Phys , vol.91 , pp. 6051-6056
    • Ningthoujam, R.S.1    Sudhakar, N.2    Rajeev, K.P.3    Gajbhiye, N.S.4
  • 95
    • 0024926177 scopus 로고
    • Nanocrystalline materials
    • H. Gleiter Nanocrystalline materials Prog Mater Sci 33 1989 223 315
    • (1989) Prog Mater Sci , vol.33 , pp. 223-315
    • Gleiter, H.1
  • 96
    • 0000669296 scopus 로고    scopus 로고
    • Conductivity and Hall effect characterization of highly resistive molecular-beam epitaxial GaN layers
    • P. Kordos, M. Morvic, J. Betko, J.M.V. Hove, A.M. Wowchak, and P.P. Chow Conductivity and Hall effect characterization of highly resistive molecular-beam epitaxial GaN layers J Appl Phys 88 2000 5821 5826
    • (2000) J Appl Phys , vol.88 , pp. 5821-5826
    • Kordos, P.1    Morvic, M.2    Betko, J.3    Hove, J.M.V.4    Wowchak, A.M.5    Chow, P.P.6
  • 97
    • 0012791565 scopus 로고
    • c superconducting B1 phase MoN films prepared by low-energy ion-assisted deposition
    • c superconducting B1 phase MoN films prepared by low-energy ion-assisted deposition J Appl Phys 62 1987 600 610
    • (1987) J Appl Phys , vol.62 , pp. 600-610
    • Savvides, N.1
  • 98
    • 0000983080 scopus 로고    scopus 로고
    • xN(0 0 1): Optical and electronic transport properties
    • xN(0 0 1): optical and electronic transport properties J Appl Phys 89 2001 401 409
    • (2001) J Appl Phys , vol.89 , pp. 401-409
    • Gall, D.1    Petrov, I.2    Greene, J.E.3
  • 100
    • 0000123956 scopus 로고
    • Electronic properties of transition-metal nitrides: The group-V and group-VI nitrides VN, NbN, TaN, CrN, MoN, and WN
    • D.A. Papaconstantopoulos, W.E. Pickett, B.M. Klein, and L.L. Boyer Electronic properties of transition-metal nitrides: the group-V and group-VI nitrides VN, NbN, TaN, CrN, MoN, and WN Phys Rev B 31 1985 752 761
    • (1985) Phys Rev B , vol.31 , pp. 752-761
    • Papaconstantopoulos, D.A.1    Pickett, W.E.2    Klein, B.M.3    Boyer, L.L.4
  • 101
    • 0042989248 scopus 로고
    • Transition temperature of strong-coupled superconductors
    • W.L. McMillan Transition temperature of strong-coupled superconductors Phys Rev 167 1968 331 344
    • (1968) Phys Rev , vol.167 , pp. 331-344
    • McMillan, W.L.1
  • 102
    • 0042266994 scopus 로고
    • Magnetic susceptibility and superconductivity of cubic vanadium nitrides
    • F.I. Ajami, and R.K. MacCrone Magnetic susceptibility and superconductivity of cubic vanadium nitrides J Phys Chem Solids 36 1975 7 15
    • (1975) J Phys Chem Solids , vol.36 , pp. 7-15
    • Ajami, F.I.1    Maccrone, R.K.2
  • 103
    • 0001148447 scopus 로고
    • Universal disorder-induced transition in the resistivity behavior of strongly coupled metals
    • M. Gurvitch Universal disorder-induced transition in the resistivity behavior of strongly coupled metals Phys Rev Lett 56 1986 647 650
    • (1986) Phys Rev Lett , vol.56 , pp. 647-650
    • Gurvitch, M.1
  • 104
    • 0021390553 scopus 로고
    • Tunneling, resistive and structural study of NbN and other superconducting nitrides
    • MAG
    • M. Gurvitch, J.P. Rameika, J.M. Rowell, J. Geerk, and W.P. Lowe Tunneling, resistive and structural study of NbN and other superconducting nitrides IEEE Trans Magn MAG-21 1985 509 513
    • (1985) IEEE Trans Magn , vol.21 , pp. 509-513
    • Gurvitch, M.1    Rameika, J.P.2    Rowell, J.M.3    Geerk, J.4    Lowe, W.P.5
  • 105
    • 0002957191 scopus 로고
    • Low-temperature resistivity of ordered and disordered A15 compounds
    • M. Gurvitch, A.K. Ghosh, H. Lutz, and M. Strongin Low-temperature resistivity of ordered and disordered A15 compounds Phys Rev B 22 1980 128 136
    • (1980) Phys Rev B , vol.22 , pp. 128-136
    • Gurvitch, M.1    Ghosh, A.K.2    Lutz, H.3    Strongin, M.4
  • 108
    • 0344462036 scopus 로고
    • Properties of superconducting vanadium nitride sputtered films
    • J. Zasadzinski, R. Vaglio, G. Rubino, K.E. Gray, and M. Russo Properties of superconducting vanadium nitride sputtered films Phys Rev B 32 1985 2929 2934
    • (1985) Phys Rev B , vol.32 , pp. 2929-2934
    • Zasadzinski, J.1    Vaglio, R.2    Rubino, G.3    Gray, K.E.4    Russo, M.5
  • 109
    • 4243526493 scopus 로고
    • Bulk superconductivity at an elevated temperature (T ≈12 K) in a nickel containing alloy system Y-Ni-B-C
    • R. Nagarajan, C. Mazumdar, Z. Hossain, S.K. Dhar, K.V. Gopalakrishnan, and L.C. Gupta Bulk superconductivity at an elevated temperature (T ≈12 K) in a nickel containing alloy system Y-Ni-B-C Phys Rev Lett 72 1994 274 277
    • (1994) Phys Rev Lett , vol.72 , pp. 274-277
    • Nagarajan, R.1    Mazumdar, C.2    Hossain, Z.3    Dhar, S.K.4    Gopalakrishnan, K.V.5    Gupta, L.C.6
  • 111
    • 30244568276 scopus 로고
    • Competition between magnetism and superconductivity in rare-earth nickel boride carbides
    • H. Eisaki, H. Takagi, R.J. Cava, B. Batlogg, J.J. Krajewski, and H.W. Zandbergen Competition between magnetism and superconductivity in rare-earth nickel boride carbides Phys Rev B 50 1994 647 650
    • (1994) Phys Rev B , vol.50 , pp. 647-650
    • Eisaki, H.1    Takagi, H.2    Cava, R.J.3    Batlogg, B.4    Krajewski, J.J.5    Zandbergen, H.W.6
  • 112
    • 0033693568 scopus 로고    scopus 로고
    • c superconductivity in electron-doped layer structured nitrides
    • c superconductivity in electron-doped layer structured nitrides Annu Rev Mater Sci 30 2000 53 82
    • (2000) Annu Rev Mater Sci , vol.30 , pp. 53-82
    • Yamanaka, S.1
  • 114
    • 37649026547 scopus 로고    scopus 로고
    • Nitrogen ion irradiation of Au(1 1 0): Photoemission spectroscopy and possible crystal structures of gold nitride
    • S. Krishnamurthy, M. Montalti, M.G. Wardle, M.J. Shaw, P.R. Briddon, and K. Svensson Nitrogen ion irradiation of Au(1 1 0): photoemission spectroscopy and possible crystal structures of gold nitride Phys Rev B 70 2004 045414-5
    • (2004) Phys Rev B , vol.70 , pp. 045414-045415
    • Krishnamurthy, S.1    Montalti, M.2    Wardle, M.G.3    Shaw, M.J.4    Briddon, P.R.5    Svensson, K.6
  • 117
    • 1642384539 scopus 로고    scopus 로고
    • Magnetic and electrical properties of iron nitride films containing both amorphous matrices and nanocrystalline grains
    • H. Naganuma, R. Nakatani, Y. Endo, Y. Kawamura, and M. Yamamoto Magnetic and electrical properties of iron nitride films containing both amorphous matrices and nanocrystalline grains Sci Technol Adv Mater 5 2004 101 106
    • (2004) Sci Technol Adv Mater , vol.5 , pp. 101-106
    • Naganuma, H.1    Nakatani, R.2    Endo, Y.3    Kawamura, Y.4    Yamamoto, M.5
  • 120
    • 0000285722 scopus 로고
    • Properties of Co-N, Co-Fe-N, and Co-Zr-N films prepared by rf sputtering in nitrogen-argon gas mixtures
    • K.K. Shih, and J. Karasinski Properties of Co-N, Co-Fe-N, and Co-Zr-N films prepared by rf sputtering in nitrogen-argon gas mixtures J Appl Phys 73 1993 8377 8380
    • (1993) J Appl Phys , vol.73 , pp. 8377-8380
    • Shih, K.K.1    Karasinski, J.2
  • 122
    • 0347947812 scopus 로고    scopus 로고
    • Formation process of Ni-N films by reactive sputtering at different substrate temperatures
    • M. Kawamura, Y. Abe, and K. Sasaki Formation process of Ni-N films by reactive sputtering at different substrate temperatures Vacuum 59 2000 721 726
    • (2000) Vacuum , vol.59 , pp. 721-726
    • Kawamura, M.1    Abe, Y.2    Sasaki, K.3
  • 126
    • 0021517499 scopus 로고
    • Electronic structure of LaN: Prediction of a small band overlap semi-metal
    • M.R. Norman, H.J.F. Jansen, D.D. Koelling, and A.J. Freeman Electronic structure of LaN: prediction of a small band overlap semi-metal Solid State Commun 52 1984 739 741
    • (1984) Solid State Commun , vol.52 , pp. 739-741
    • Norman, M.R.1    Jansen, H.J.F.2    Koelling, D.D.3    Freeman, A.J.4
  • 127
    • 49949142916 scopus 로고
    • Superconducting critical temperatures of nonstoichiometric transition metal carbides and nitrides
    • L.E. Toth, C.P. Wang, and C.M. Yen Superconducting critical temperatures of nonstoichiometric transition metal carbides and nitrides Acta Metall 14 1966 1403 1408
    • (1966) Acta Metall , vol.14 , pp. 1403-1408
    • Toth, L.E.1    Wang, C.P.2    Yen, C.M.3
  • 130
    • 0842264789 scopus 로고    scopus 로고
    • Ab initio total energy calculations of copper nitride: The effect of lattice parameters and Cu content in the electronic properties
    • M.G.M. Armenta, A.M. Ruiz, and N. Takeuchi Ab initio total energy calculations of copper nitride: the effect of lattice parameters and Cu content in the electronic properties Solid State Sci 6 2004 9 14
    • (2004) Solid State Sci , vol.6 , pp. 9-14
    • Armenta, M.G.M.1    Ruiz, A.M.2    Takeuchi, N.3
  • 131
    • 0038479475 scopus 로고    scopus 로고
    • Electronic structure and chemical-bonding mechanism of Cu3N, Cui3NPd, and related Cu(I) compounds
    • U. Hahn, and W. Weber Electronic structure and chemical-bonding mechanism of Cu3N, Cui3NPd, and related Cu(I) compounds Phys Rev B 53 1996 12684 12693
    • (1996) Phys Rev B , vol.53 , pp. 12684-12693
    • Hahn, U.1    Weber, W.2
  • 132
    • 0036607059 scopus 로고    scopus 로고
    • Structure and properties of copper nitride films formed by reactive magnetron sputtering
    • J.F. Pierson Structure and properties of copper nitride films formed by reactive magnetron sputtering Vacuum 66 2002 59 64
    • (2002) Vacuum , vol.66 , pp. 59-64
    • Pierson, J.F.1
  • 133
    • 0000168975 scopus 로고
    • Copper nitride thin films prepared by radio-frequency reactive sputtering
    • T. Maruyama, and T. Morishita Copper nitride thin films prepared by radio-frequency reactive sputtering J Appl Phys 78 1995 4104 4107
    • (1995) J Appl Phys , vol.78 , pp. 4104-4107
    • Maruyama, T.1    Morishita, T.2
  • 134
    • 21144468016 scopus 로고
    • Deposition of crystalline binary nitride films of tin, copper, and nickel by reactive sputtering
    • L. Maya Deposition of crystalline binary nitride films of tin, copper, and nickel by reactive sputtering J Vac Sci Technol A 11 1993 604 608
    • (1993) J Vac Sci Technol A , vol.11 , pp. 604-608
    • Maya, L.1
  • 135
    • 84887009196 scopus 로고    scopus 로고
    • x (M = Cu, Ag, Au) compounds
    • x (M = Cu, Ag, Au) compounds Sci Rep 3 2013 3090-6
    • (2013) Sci Rep , vol.3 , pp. 3090-3096
    • Lu, N.1    Ji, A.2    Cao, Z.3
  • 138
    • 0032496544 scopus 로고    scopus 로고
    • Structural, electrical and optical properties of zinc nitride thin films prepared by reactive rf magnetron sputtering
    • M. Futsuhara, K. Yashioka, and O. Takai Structural, electrical and optical properties of zinc nitride thin films prepared by reactive rf magnetron sputtering Thin Solid Films 322 1998 274 281
    • (1998) Thin Solid Films , vol.322 , pp. 274-281
    • Futsuhara, M.1    Yashioka, K.2    Takai, O.3
  • 140
    • 84955029461 scopus 로고
    • Growth and properties of single crystal TiN films deposited by reactive magnetron sputtering
    • B.O. Johansson, J.E. Sundgren, J.E. Greene, A. Rockett, and S.A. Barnett Growth and properties of single crystal TiN films deposited by reactive magnetron sputtering J Vac Sci Technol A 3 1985 303 307
    • (1985) J Vac Sci Technol A , vol.3 , pp. 303-307
    • Johansson, B.O.1    Sundgren, J.E.2    Greene, J.E.3    Rockett, A.4    Barnett, S.A.5
  • 141
    • 0001245717 scopus 로고
    • Raman scattering, superconductivity, and phonon density of states of stoichiometric and nonstoichiometric TiN
    • W. Spengler, R. Kaiser, A.N. Christenson, and G. Müller-Vogt Raman scattering, superconductivity, and phonon density of states of stoichiometric and nonstoichiometric TiN Phys Rev B 17 1978 1095 1101
    • (1978) Phys Rev B , vol.17 , pp. 1095-1101
    • Spengler, W.1    Kaiser, R.2    Christenson, A.N.3    Müller-Vogt, G.4
  • 142
    • 0020776923 scopus 로고
    • Mechanisms of reactive sputtering of titanium nitride and titanium carbide I: Influence of process parameters on film composition
    • J.E. Sundgren, B.O. Johansson, and S.E. Karlsson Mechanisms of reactive sputtering of titanium nitride and titanium carbide I: influence of process parameters on film composition Thin Solid Films 105 1983 353 366
    • (1983) Thin Solid Films , vol.105 , pp. 353-366
    • Sundgren, J.E.1    Johansson, B.O.2    Karlsson, S.E.3
  • 143
    • 0019036802 scopus 로고
    • The effects of substrate bias on the structural and electrical properties of TiN films prepared by reactive R.F. Sputtering
    • Y. Igasaki, and H. Mitsuhashi The effects of substrate bias on the structural and electrical properties of TiN films prepared by reactive r.f. sputtering Thin Solid Films 70 1980 17 25
    • (1980) Thin Solid Films , vol.70 , pp. 17-25
    • Igasaki, Y.1    Mitsuhashi, H.2
  • 144
    • 0020135740 scopus 로고
    • TiN formed by evaporation as a diffusion barrier between Al and Si
    • C.Y. Ting TiN formed by evaporation as a diffusion barrier between Al and Si J Vac Sci Technol A 21 1982 14 18
    • (1982) J Vac Sci Technol A , vol.21 , pp. 14-18
    • Ting, C.Y.1
  • 145
    • 0006208903 scopus 로고
    • Temperature dependence of the electrical resistivity of reactively sputtered TiN films
    • W. Tsai, M. Delfino, J.A. Fair, and D. Hodul Temperature dependence of the electrical resistivity of reactively sputtered TiN films J Appl Phys 73 1993 4462 4467
    • (1993) J Appl Phys , vol.73 , pp. 4462-4467
    • Tsai, W.1    Delfino, M.2    Fair, J.A.3    Hodul, D.4
  • 146
    • 4243544322 scopus 로고
    • Electron tunneling into superconducting ZrN
    • J. Geerk, G. Linker, and R. Smithey Electron tunneling into superconducting ZrN Phys Rev Lett 57 1986 3284 3287
    • (1986) Phys Rev Lett , vol.57 , pp. 3284-3287
    • Geerk, J.1    Linker, G.2    Smithey, R.3
  • 148
    • 0000465636 scopus 로고
    • Strong depression of superconductivity in VN by spin fluctuations
    • H. Rietschel, H. Winter, and W. Reichardt Strong depression of superconductivity in VN by spin fluctuations Phys Rev B 22 1980 4284 4292
    • (1980) Phys Rev B , vol.22 , pp. 4284-4292
    • Rietschel, H.1    Winter, H.2    Reichardt, W.3
  • 149
    • 0004401491 scopus 로고
    • Superconducting and normal-state properties of vanadium nitride
    • B.R. Zhao, L. Chen, H.L. Luo, M.D. Jack, and D.P. Mullin Superconducting and normal-state properties of vanadium nitride Phys Rev B 29 1984 6198 6202
    • (1984) Phys Rev B , vol.29 , pp. 6198-6202
    • Zhao, B.R.1    Chen, L.2    Luo, H.L.3    Jack, M.D.4    Mullin, D.P.5
  • 150
    • 84861445716 scopus 로고
    • 2 low temperature resistivity behavior in strongly-coupled disordered metals
    • 2 low temperature resistivity behavior in strongly-coupled disordered metals Bull Am Phys Soc 30 1985 633
    • (1985) Bull Am Phys Soc , vol.30 , pp. 633
    • Gurvitch, M.1
  • 151
    • 3142698824 scopus 로고    scopus 로고
    • Effect of La, B doping on the electrical resistivity and magnetic susceptibility of nanocrystalline vanadium nitride
    • N. Sudhakar, R.S. Ningthoujam, K.P. Rajeev, A.K. Nigam, J. Weissmuller, and N.S. Gajbhiye Effect of La, B doping on the electrical resistivity and magnetic susceptibility of nanocrystalline vanadium nitride J Appl Phys 96 2004 688 695
    • (2004) J Appl Phys , vol.96 , pp. 688-695
    • Sudhakar, N.1    Ningthoujam, R.S.2    Rajeev, K.P.3    Nigam, A.K.4    Weissmuller, J.5    Gajbhiye, N.S.6
  • 152
    • 12344293235 scopus 로고    scopus 로고
    • Magnetic and current density studies on nanostructured vanadium nitride material
    • R.S. Ningthoujam, and N.S. Gajbhiye Magnetic and current density studies on nanostructured vanadium nitride material Ind J Phys 78A 2004 89 91
    • (2004) Ind J Phys , vol.78 A , pp. 89-91
    • Ningthoujam, R.S.1    Gajbhiye, N.S.2
  • 153
    • 33746701293 scopus 로고    scopus 로고
    • Low temperature synthesis, crystal structure and thermal stability studies of nanocrystalline VN particles
    • N.S. Gajbhiye, and R.S. Ningthoujam Low temperature synthesis, crystal structure and thermal stability studies of nanocrystalline VN particles Mater Res Bull 41 2006 1612 1621
    • (2006) Mater Res Bull , vol.41 , pp. 1612-1621
    • Gajbhiye, N.S.1    Ningthoujam, R.S.2
  • 154
    • 0000306634 scopus 로고
    • Effects of disorder on high-temperature superconductivity in cubic MoN
    • D.A. Papaconstantopoulos, and W.E. Pickett Effects of disorder on high-temperature superconductivity in cubic MoN Phys Rev B 31 1985 7093 7097
    • (1985) Phys Rev B , vol.31 , pp. 7093-7097
    • Papaconstantopoulos, D.A.1    Pickett, W.E.2
  • 156
    • 0002648531 scopus 로고
    • The catalytic activity of metals produced by the reduction of salts in liquid ammonia. I. Nickel
    • G.W. Watt, and D.D. Davies The catalytic activity of metals produced by the reduction of salts in liquid ammonia. I. Nickel J Am Chem Soc 70 1948 3753 3755
    • (1948) J Am Chem Soc , vol.70 , pp. 3753-3755
    • Watt, G.W.1    Davies, D.D.2
  • 160
    • 0036468783 scopus 로고    scopus 로고
    • Effects of carbon doping on superconductivity in magnesium diboride
    • W. Michelson, J. Cumings, W.O. Han, and A. Zettl Effects of carbon doping on superconductivity in magnesium diboride Phys Rev B 65 2002 52505-3
    • (2002) Phys Rev B , vol.65 , pp. 52505-52513
    • Michelson, W.1    Cumings, J.2    Han, W.O.3    Zettl, A.4
  • 162
    • 0039015696 scopus 로고    scopus 로고
    • Synthesis, crystal structure, electrical, magnetic, and electrochemical lithium intercalation properties of vanadium oxynitrides
    • B. Wang, B.C. Chakoumakos, B.C. Sales, and J.B. Bates Synthesis, crystal structure, electrical, magnetic, and electrochemical lithium intercalation properties of vanadium oxynitrides J Solid State Chem 122 1996 376 383
    • (1996) J Solid State Chem , vol.122 , pp. 376-383
    • Wang, B.1    Chakoumakos, B.C.2    Sales, B.C.3    Bates, J.B.4
  • 163
    • 0002765329 scopus 로고
    • A study of superconductivity in interstitial compounds
    • N. Pessall, R.E. Gold, and H.A. Johansen A study of superconductivity in interstitial compounds J Phys Chem Solids 29 1968 19 38
    • (1968) J Phys Chem Solids , vol.29 , pp. 19-38
    • Pessall, N.1    Gold, R.E.2    Johansen, H.A.3
  • 164
    • 33749267678 scopus 로고    scopus 로고
    • Normal-state transport and vortex dynamics in thin films of two structural polymorphs of superconducting NbN
    • K. Senapati, N.K. Pandey, R. Nagar, and R.C. Budhani Normal-state transport and vortex dynamics in thin films of two structural polymorphs of superconducting NbN Phys Rev B 74 2006 104514-8
    • (2006) Phys Rev B , vol.74 , pp. 104514-104518
    • Senapati, K.1    Pandey, N.K.2    Nagar, R.3    Budhani, R.C.4
  • 165
    • 0018023866 scopus 로고
    • Preparation and compositional analysis of sputtered TaN films
    • K. Reichelt, W. Nellen, and G. Mair Preparation and compositional analysis of sputtered TaN films J Appl Phys 49 1978 5284 5287
    • (1978) J Appl Phys , vol.49 , pp. 5284-5287
    • Reichelt, K.1    Nellen, W.2    Mair, G.3
  • 168
    • 36149003337 scopus 로고
    • A search for new superconducting compounds
    • B.T. Matthias, and J.K. Hulm A search for new superconducting compounds Phys Rev 87 1952 799 806
    • (1952) Phys Rev , vol.87 , pp. 799-806
    • Matthias, B.T.1    Hulm, J.K.2
  • 169
    • 0033938902 scopus 로고    scopus 로고
    • High pressure synthesis of molybdenum nitride MoN
    • X. Zhao, and K.J. Range High pressure synthesis of molybdenum nitride MoN J Alloys Compd 296 2000 72 74
    • (2000) J Alloys Compd , vol.296 , pp. 72-74
    • Zhao, X.1    Range, K.J.2
  • 170
    • 0023538239 scopus 로고
    • Superconducting critical current in MoN
    • Y. Nishi, S. Tokunaga, and S. Moriya Superconducting critical current in MoN J Mater Sci Lett 6 1987 1450 1452
    • (1987) J Mater Sci Lett , vol.6 , pp. 1450-1452
    • Nishi, Y.1    Tokunaga, S.2    Moriya, S.3
  • 173
    • 0344837599 scopus 로고
    • Structural and superconducting properties of artificially superstructured MoN-TiN films
    • K. Kawaguchi, and S. Shin Structural and superconducting properties of artificially superstructured MoN-TiN films J Appl Phys 67 1990 921 929
    • (1990) J Appl Phys , vol.67 , pp. 921-929
    • Kawaguchi, K.1    Shin, S.2
  • 177
    • 0006213143 scopus 로고    scopus 로고
    • Trends in research on nanostructured magnetic materials
    • N.S. Gajbhiye Trends in research on nanostructured magnetic materials Met Mater Process 10 1998 247 264
    • (1998) Met Mater Process , vol.10 , pp. 247-264
    • Gajbhiye, N.S.1
  • 178
    • 0001645878 scopus 로고    scopus 로고
    • 3N synthesized by borohydride reduction route
    • 3N synthesized by borohydride reduction route J Appl Phys 81 1997 335 339
    • (1997) J Appl Phys , vol.81 , pp. 335-339
    • Panda, R.N.1    Gajbhiye, N.S.2
  • 180
    • 0004071609 scopus 로고
    • Cambridge University Press Cambridge
    • A.H. Wilson Theory of metals 1964 Cambridge University Press Cambridge
    • (1964) Theory of Metals
    • Wilson, A.H.1
  • 182
    • 0017943225 scopus 로고
    • The molybdenum-nitrogen phase diagram
    • H. Jehn, and P. Ettmayer The molybdenum-nitrogen phase diagram J Less Comm Metals 58 1978 85 98
    • (1978) J Less Comm Metals , vol.58 , pp. 85-98
    • Jehn, H.1    Ettmayer, P.2
  • 184
    • 0000577417 scopus 로고    scopus 로고
    • 11 single crystals by use of the photoinduced transient thermoelectric effect
    • 11 single crystals by use of the photoinduced transient thermoelectric effect Phys Rev B 47 2001 6216 6225
    • (2001) Phys Rev B , vol.47 , pp. 6216-6225
    • Sasaki, M.1    Tai, G.X.2    Tamura, S.3    Inoue, M.4
  • 185
    • 0000653037 scopus 로고    scopus 로고
    • Different effect of annealing temperature on resistivity for stoichiometric, W rich, and N rich tungsten nitride films
    • J. Lin, A. Tsukune, T. Suzuki, and M. Yamada Different effect of annealing temperature on resistivity for stoichiometric, W rich, and N rich tungsten nitride films J Vac Sci Technol A 17 1999 936 938
    • (1999) J Vac Sci Technol A , vol.17 , pp. 936-938
    • Lin, J.1    Tsukune, A.2    Suzuki, T.3    Yamada, M.4
  • 186
    • 0037273485 scopus 로고    scopus 로고
    • xN alloys grown on MgO(0 0 1) by ultrahigh vacuum reactive magnetron sputtering: Electronic properties and long-range cation ordering
    • xN alloys grown on MgO(0 0 1) by ultrahigh vacuum reactive magnetron sputtering: electronic properties and long-range cation ordering J Vac Sci Technol A 21 2003 140 146
    • (2003) J Vac Sci Technol A , vol.21 , pp. 140-146
    • Tian, F.1    Gall, J.D.A.2    Lee, T.Y.3    Sardela, M.4    Gall, D.5    Petrov, I.6
  • 190
    • 0001359925 scopus 로고
    • 2C and related boride carbide phases
    • 2C and related boride carbide phases Phys Rev B 49 1994 13279 13282
    • (1994) Phys Rev B , vol.49 , pp. 13279-13282
    • Mattheiss, L.F.1
  • 193
    • 0024892965 scopus 로고
    • Preparation and electrical conductivities of layer structured crystals ZrNX (X = Br, I)
    • M. Ohashi, S. Yamanaka, and M. Hattori Preparation and electrical conductivities of layer structured crystals ZrNX (X = Br, I) J Ceram Soc Jpn Int Ed 97 1989 1181 1188
    • (1989) J Ceram Soc Jpn Int Ed , vol.97 , pp. 1181-1188
    • Ohashi, M.1    Yamanaka, S.2    Hattori, M.3
  • 207
    • 36149019890 scopus 로고
    • Superconducting silicides and germanides
    • G.F. Hardy, and J.K. Hulm Superconducting silicides and germanides Phys Rev 89 1953 884
    • (1953) Phys Rev , vol.89 , pp. 884
    • Hardy, G.F.1    Hulm, J.K.2
  • 208
    • 36149010427 scopus 로고
    • Superconducting elements
    • J. Eisenstein Superconducting elements Rev Mod Phys 26 1954 277 291
    • (1954) Rev Mod Phys , vol.26 , pp. 277-291
    • Eisenstein, J.1
  • 211
    • 0014371735 scopus 로고
    • Metallic hydrogen: A high temperature superconductor?
    • N.W. Aschroft Metallic hydrogen: a high temperature superconductor? Phys Rev Lett 21 1968 1748 1749
    • (1968) Phys Rev Lett , vol.21 , pp. 1748-1749
    • Aschroft, N.W.1
  • 213
    • 0016081491 scopus 로고
    • Superconductivity with onset above 23 K in Nb-Ge sputtered films
    • L.R. Testardi, J.H. Wernick, and W.A. Royer Superconductivity with onset above 23 K in Nb-Ge sputtered films Solid State Commun 15 1974 1 4
    • (1974) Solid State Commun , vol.15 , pp. 1-4
    • Testardi, L.R.1    Wernick, J.H.2    Royer, W.A.3
  • 217
    • 0023644129 scopus 로고
    • The discovery of a class of high-temperature superconductors
    • K.A. Müller, and J.G. Bednorz The discovery of a class of high-temperature superconductors Science 234 1987 1133 1139
    • (1987) Science , vol.234 , pp. 1133-1139
    • Müller, K.A.1    Bednorz, J.G.2
  • 219
    • 4244177910 scopus 로고
    • Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound system
    • C.W. Chu, P.H. Hor, R.L. Meng, L. Gao, Z.J. Huang, and Y.Q. Wang Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound system Phys Rev Lett 58 1987 405 407
    • (1987) Phys Rev Lett , vol.58 , pp. 405-407
    • Chu, C.W.1    Hor, P.H.2    Meng, R.L.3    Gao, L.4    Huang, Z.J.5    Wang, Y.Q.6
  • 221
    • 33644690472 scopus 로고
    • Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure
    • M.K. Wu, J.R. Ashburn, C.J. Torng, P.H. Hor, R.L. Meng, and L. Gao Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure Phys Rev Lett 58 1987 908 910
    • (1987) Phys Rev Lett , vol.58 , pp. 908-910
    • Wu, M.K.1    Ashburn, J.R.2    Torng, C.J.3    Hor, P.H.4    Meng, R.L.5    Gao, L.6
  • 222
    • 0023136422 scopus 로고
    • Superconductivity at 52.5 K in the lanthanum-barium-copper-oxide system
    • C.W. Chu, P.H. Hor, R.L. Meng, L. Gao, and Z.J. Huang Superconductivity at 52.5 K in the lanthanum-barium-copper-oxide system Science 235 1987 567 569
    • (1987) Science , vol.235 , pp. 567-569
    • Chu, C.W.1    Hor, P.H.2    Meng, R.L.3    Gao, L.4    Huang, Z.J.5
  • 223
    • 34250088318 scopus 로고
    • 3Ge samples prepared by dc cathodic sputtering technique
    • 3Ge samples prepared by dc cathodic sputtering technique Czeck J Phys B 38 1988 794 801
    • (1988) Czeck J Phys B , vol.38 , pp. 794-801
    • Ruzicka, J.1    Pracharova, J.2
  • 225
    • 0023983729 scopus 로고
    • Bulk superconductivity at 120 K in the Tl-Ca/Ba-Cu-O system
    • Z.Z. Sheng, and A.M. Hermann Bulk superconductivity at 120 K in the Tl-Ca/Ba-Cu-O system Nature 332 1988 138 139
    • (1988) Nature , vol.332 , pp. 138-139
    • Sheng, Z.Z.1    Hermann, A.M.2
  • 226
    • 0026119683 scopus 로고
    • Superconducting properties and microstructures in NbTi superconducting wires
    • K. Matsumoto, M. Nakajima, Y. Tanaka, and K. Osamura Superconducting properties and microstructures in NbTi superconducting wires IEEE Trans Magn 27 1991 1125 1128
    • (1991) IEEE Trans Magn , vol.27 , pp. 1125-1128
    • Matsumoto, K.1    Nakajima, M.2    Tanaka, Y.3    Osamura, K.4
  • 228
    • 0027910424 scopus 로고
    • Superconductivity at 130 K in the Hg-Ba-Ca-Cu-O system
    • A. Schilling, M. Cantoni, J.D. Guo, and H.R. Ott Superconductivity at 130 K in the Hg-Ba-Ca-Cu-O system Nature 363 1993 56 58
    • (1993) Nature , vol.363 , pp. 56-58
    • Schilling, A.1    Cantoni, M.2    Guo, J.D.3    Ott, H.R.4
  • 245
    • 0031164169 scopus 로고    scopus 로고
    • Structure and properties of carbon nitride films synthesized by low energy ion bombardment
    • X.M. He, L. Shu, W.Z. Li, and H.D. Li Structure and properties of carbon nitride films synthesized by low energy ion bombardment J Mater Res 12 1997 1595 1602
    • (1997) J Mater Res , vol.12 , pp. 1595-1602
    • He, X.M.1    Shu, L.2    Li, W.Z.3    Li, H.D.4
  • 247
    • 84872517471 scopus 로고    scopus 로고
    • Ultrahard nanotwinned cubic boron nitride
    • Y. Tian, B. Xu, D. Lu, Y. Ma, Y. Wang, and Y. Jiang Ultrahard nanotwinned cubic boron nitride Nature 493 2013 385 388
    • (2013) Nature , vol.493 , pp. 385-388
    • Tian, Y.1    Xu, B.2    Lu, D.3    Ma, Y.4    Wang, Y.5    Jiang, Y.6
  • 250
    • 79956069921 scopus 로고    scopus 로고
    • Nanocrystalline diamond
    • O.A. Williams Nanocrystalline diamond Diamond Relat Mater 20 2011 621 640
    • (2011) Diamond Relat Mater , vol.20 , pp. 621-640
    • Williams, O.A.1
  • 251
    • 0036672187 scopus 로고    scopus 로고
    • Variation of color in titanium and zirconium nitride decorative thin films
    • S. Niyomsoan, W. Grant, D.L. Olson, and B. Mishra Variation of color in titanium and zirconium nitride decorative thin films Thin Solids Films 415 2002 187 194
    • (2002) Thin Solids Films , vol.415 , pp. 187-194
    • Niyomsoan, S.1    Grant, W.2    Olson, D.L.3    Mishra, B.4
  • 252
    • 30444440297 scopus 로고    scopus 로고
    • Wear and tool life of tungsten carbide, PCBN and PCD cutting tools
    • J.A. Arsecularatne, L.C. Zhangl, and C. Montross Wear and tool life of tungsten carbide, PCBN and PCD cutting tools Int J Mach Tools Manuf 46 2006 482 491
    • (2006) Int J Mach Tools Manuf , vol.46 , pp. 482-491
    • Arsecularatne, J.A.1    Zhangl, L.C.2    Montross, C.3
  • 253
    • 0033499957 scopus 로고    scopus 로고
    • Cubic boron nitride tool wear in interrupted hard cutting
    • Y.K. Chou, and C.J. Eavns Cubic boron nitride tool wear in interrupted hard cutting Wear 225-229 1999 234 245
    • (1999) Wear , vol.225-229 , pp. 234-245
    • Chou, Y.K.1    Eavns, C.J.2
  • 255
    • 84876494269 scopus 로고    scopus 로고
    • Selection of boron based tribological hard coatings using multi-criteria decision making methods
    • H. Caliskan Selection of boron based tribological hard coatings using multi-criteria decision making methods Mater Des 50 2013 742 749
    • (2013) Mater des , vol.50 , pp. 742-749
    • Caliskan, H.1
  • 256
    • 77953534820 scopus 로고    scopus 로고
    • High-enthalpy test environments, flow modeling and in situ diagnostics for characterizing ultra-high temperature ceramics
    • J. Marschall, and D.G. Fletcher High-enthalpy test environments, flow modeling and in situ diagnostics for characterizing ultra-high temperature ceramics J Eur Ceram Soc 30 2010 2323 2336
    • (2010) J Eur Ceram Soc , vol.30 , pp. 2323-2336
    • Marschall, J.1    Fletcher, D.G.2
  • 258
    • 84884350467 scopus 로고    scopus 로고
    • Ultra high temperature ceramics: Densification, properties and thermal stability
    • J.F. Justin, and A. Jakowick Ultra high temperature ceramics: densification, properties and thermal stability J Aerospace Lab Iss 3 2011 11
    • (2011) J Aerospace Lab Iss , vol.3 , pp. 11
    • Justin, J.F.1    Jakowick, A.2
  • 259
    • 13844255607 scopus 로고    scopus 로고
    • Sputter deposition of bcc tantalum films with TaN underlayers for protection of steel
    • L. Gladczuk, A. Patel, J.D. Demaree, and M. Sosnowski Sputter deposition of bcc tantalum films with TaN underlayers for protection of steel Thin Solid Films 476 2005 295 302
    • (2005) Thin Solid Films , vol.476 , pp. 295-302
    • Gladczuk, L.1    Patel, A.2    Demaree, J.D.3    Sosnowski, M.4
  • 260
    • 33845374200 scopus 로고
    • Synthetically useful reactions with metal boride and aluminide catalysts
    • B. Ganem, and J.O. Osby Synthetically useful reactions with metal boride and aluminide catalysts Chem Rev 86 1986 763 780
    • (1986) Chem Rev , vol.86 , pp. 763-780
    • Ganem, B.1    Osby, J.O.2
  • 261
    • 77953651657 scopus 로고    scopus 로고
    • Hydrodeoxygenation of oleic acid and canola oil over alumina-supported metal nitrides
    • J. Monnier, H. Sulimma, A. Dalai, and G. Caravaggio Hydrodeoxygenation of oleic acid and canola oil over alumina-supported metal nitrides Appl Catal A: Gen 382 2010 176 180
    • (2010) Appl Catal A: Gen , vol.382 , pp. 176-180
    • Monnier, J.1    Sulimma, H.2    Dalai, A.3    Caravaggio, G.4
  • 263
    • 84885307256 scopus 로고    scopus 로고
    • Recovery behavior of neutron-induced damage of AlN irradiated at higher temperatures by thermal annealing
    • T. Yano, Y. Futamura, M. Imai, and K. Yoshide Recovery behavior of neutron-induced damage of AlN irradiated at higher temperatures by thermal annealing J Nucl Mater 440 2003 495 499
    • (2003) J Nucl Mater , vol.440 , pp. 495-499
    • Yano, T.1    Futamura, Y.2    Imai, M.3    Yoshide, K.4
  • 264
    • 84884520626 scopus 로고    scopus 로고
    • Preparation and properties of hexagonal boron nitride fibers used as high temperature membrane filter
    • X. Hou, Z. Yu, Y. Li, and K.C. Chou Preparation and properties of hexagonal boron nitride fibers used as high temperature membrane filter Mater Res Bull 49 2014 39 43
    • (2014) Mater Res Bull , vol.49 , pp. 39-43
    • Hou, X.1    Yu, Z.2    Li, Y.3    Chou, K.C.4
  • 266
    • 84871560523 scopus 로고    scopus 로고
    • Influence of substrate nitridation temperature on epitaxial alignment of GaN nanowires to Si(1 1 1) substrate
    • A. Wierzbicka, Z.R. Zytkiewicz, S. Kret, J. Borysiuk, P. Dluzewski, and M. Sobanska Influence of substrate nitridation temperature on epitaxial alignment of GaN nanowires to Si(1 1 1) substrate Nanotechnology 24 2013 035703-7
    • (2013) Nanotechnology , vol.24 , pp. 035703-035707
    • Wierzbicka, A.1    Zytkiewicz, Z.R.2    Kret, S.3    Borysiuk, J.4    Dluzewski, P.5    Sobanska, M.6
  • 267
    • 0032181962 scopus 로고    scopus 로고
    • Growth and applications of group III-nitrides
    • O. Ambacher Growth and applications of group III-nitrides J Phys D: Appl Phys 31 1998 2653 2710
    • (1998) J Phys D: Appl Phys , vol.31 , pp. 2653-2710
    • Ambacher, O.1
  • 269
    • 0346665859 scopus 로고    scopus 로고
    • Thermal conductivity of germanium, silicon, and carbon nitrides
    • D.T. Morelli, and J.P. Heremans Thermal conductivity of germanium, silicon, and carbon nitrides Appl Phys Lett 81 2002 5126 5128
    • (2002) Appl Phys Lett , vol.81 , pp. 5126-5128
    • Morelli, D.T.1    Heremans, J.P.2
  • 270
    • 20844440504 scopus 로고    scopus 로고
    • Thermal conductivity of B-C-N and BN nanotubes
    • C.W. Chang, W.Q. Han, and A. Zettle Thermal conductivity of B-C-N and BN nanotubes Appl Phys Lett 86 2005 173102-3
    • (2005) Appl Phys Lett , vol.86 , pp. 173102-173103
    • Chang, C.W.1    Han, W.Q.2    Zettle, A.3
  • 273
    • 0002864028 scopus 로고    scopus 로고
    • Group III nitride semiconductors for short wavelength light-emitting devices
    • J.W. Ortony, and C.T. Foxonz Group III nitride semiconductors for short wavelength light-emitting devices Rep Prog Phys 61 1998 1 75
    • (1998) Rep Prog Phys , vol.61 , pp. 1-75
    • Ortony, J.W.1    Foxonz, C.T.2
  • 274
    • 33745627020 scopus 로고    scopus 로고
    • An aluminium nitride light-emitting diode with a wavelength of 210 nanometres
    • Y. Taniyasu, M. Kasu, and T. Makimoto An aluminium nitride light-emitting diode with a wavelength of 210 nanometres Nature 441 2006 325 328
    • (2006) Nature , vol.441 , pp. 325-328
    • Taniyasu, Y.1    Kasu, M.2    Makimoto, T.3
  • 275
    • 0000828837 scopus 로고
    • Nitrogen compounds of gallium III. Gallic nitride
    • W.C. Johnson, J.B. Parsons, and M.C. Crew Nitrogen compounds of gallium III. Gallic nitride J Phys Chem 36 1932 2651 2654
    • (1932) J Phys Chem , vol.36 , pp. 2651-2654
    • Johnson, W.C.1    Parsons, J.B.2    Crew, M.C.3
  • 276
    • 0002223599 scopus 로고
    • Preparation, stability and luminescence of gallium nitride
    • M.R. Lorenz, and B.B. Binkowski Preparation, stability and luminescence of gallium nitride J Electrochem Soc 109 1962 24 26
    • (1962) J Electrochem Soc , vol.109 , pp. 24-26
    • Lorenz, M.R.1    Binkowski, B.B.2
  • 277
    • 0014595810 scopus 로고
    • The preparation and properties of vapour-deposited single crystalline GaN
    • H.P. Maruska, and J.J. Tietjen The preparation and properties of vapour-deposited single crystalline GaN Appl Phys Lett 15 1969 327 329
    • (1969) Appl Phys Lett , vol.15 , pp. 327-329
    • Maruska, H.P.1    Tietjen, J.J.2
  • 279
    • 0344548628 scopus 로고
    • Improvement on the electrical and luminescent properties of reactive molecular beam epitaxially grown GaN films by using AlN-coated sapphire substrates
    • S. Yoshida, S. Misuwa, and S. Gonda Improvement on the electrical and luminescent properties of reactive molecular beam epitaxially grown GaN films by using AlN-coated sapphire substrates Appl Phys Lett 42 1983 427 429
    • (1983) Appl Phys Lett , vol.42 , pp. 427-429
    • Yoshida, S.1    Misuwa, S.2    Gonda, S.3
  • 280
    • 36749110808 scopus 로고
    • Electrical properties and ion implantation of epitaxial GaN grown by low pressure metalorganic chemical vapour deposition
    • M.A. Khan, R.A. Skogman, M. Gershenzon, and R.G. Schulze Electrical properties and ion implantation of epitaxial GaN grown by low pressure metalorganic chemical vapour deposition Appl Phys Lett 42 1983 430 432
    • (1983) Appl Phys Lett , vol.42 , pp. 430-432
    • Khan, M.A.1    Skogman, R.A.2    Gershenzon, M.3    Schulze, R.G.4
  • 282
    • 0023040588 scopus 로고
    • Metalorganic vapour phase epitaxial growth of a high quality GaN films using an AlN buffer layer
    • H. Amano, S. Sawaki, I. Akasaki, and Y. Toyoda Metalorganic vapour phase epitaxial growth of a high quality GaN films using an AlN buffer layer Appl Phys Lett 48 1986 353 355
    • (1986) Appl Phys Lett , vol.48 , pp. 353-355
    • Amano, H.1    Sawaki, S.2    Akasaki, I.3    Toyoda, Y.4
  • 284
    • 84883188181 scopus 로고
    • P-type conduction in Mg-doped GaN treated with low-energy beam irradiation (LEEBI)
    • H. Amano, M. Kito, K. Hiramatsu, and I. Akasaki P-type conduction in Mg-doped GaN treated with low-energy beam irradiation (LEEBI) Jpn J Appl Phys 28 1989 L2112 L2114
    • (1989) Jpn J Appl Phys , vol.28 , pp. 2112-L2114
    • Amano, H.1    Kito, M.2    Hiramatsu, K.3    Akasaki, I.4
  • 285
    • 0026867861 scopus 로고
    • Hole compensation mechanism of p-type GaN films
    • S. Nakamula, N. Iwasa, M. Senoh, and T. Mukai Hole compensation mechanism of p-type GaN films Jpn J Appl Phys 31 1992 1258 1266
    • (1992) Jpn J Appl Phys , vol.31 , pp. 1258-1266
    • Nakamula, S.1    Iwasa, N.2    Senoh, M.3    Mukai, T.4
  • 286
    • 0030036586 scopus 로고    scopus 로고
    • A benzene-thermal-synthetic route to nanocrystalline GaN
    • Y. Xie, Y. Qian, W. Wang, S. Zhang, and Y. Zhang A benzene-thermal-synthetic route to nanocrystalline GaN Science 272 1996 1926 1927
    • (1996) Science , vol.272 , pp. 1926-1927
    • Xie, Y.1    Qian, Y.2    Wang, W.3    Zhang, S.4    Zhang, Y.5
  • 288
    • 34347380453 scopus 로고    scopus 로고
    • Breakthroughs in improving crystal quality of GaN and invention of the p-n junction blue-light-emitting diodes
    • I. Akasaki, and H. Amano Breakthroughs in improving crystal quality of GaN and invention of the p-n junction blue-light-emitting diodes Jpn J Appl Phys 45 2006 9000 9010
    • (2006) Jpn J Appl Phys , vol.45 , pp. 9000-9010
    • Akasaki, I.1    Amano, H.2
  • 290
    • 0034710677 scopus 로고    scopus 로고
    • Nitride semiconductors free of electrostatic fields for efficient white light-emitting diodes
    • P. Waltereit, O. Brandt, A. Trampert, H.T. Grahn, J. Menniger, and M. Ramsteiner Nitride semiconductors free of electrostatic fields for efficient white light-emitting diodes Nature 406 2000 865 868
    • (2000) Nature , vol.406 , pp. 865-868
    • Waltereit, P.1    Brandt, O.2    Trampert, A.3    Grahn, H.T.4    Menniger, J.5    Ramsteiner, M.6
  • 291
    • 0032022835 scopus 로고    scopus 로고
    • Morphology and characterization of GaN single crystals grown in a Na flux
    • H. Yamane, M. Shimada, T. Sekiguchi, and F.J. DiSalvo Morphology and characterization of GaN single crystals grown in a Na flux J Cryst Growth 186 1998 8 12
    • (1998) J Cryst Growth , vol.186 , pp. 8-12
    • Yamane, H.1    Shimada, M.2    Sekiguchi, T.3    Disalvo, F.J.4
  • 292
    • 80455130133 scopus 로고    scopus 로고
    • 2 nanostructures tuned to industrial standards
    • 2 nanostructures tuned to industrial standards Chem Mater 23 2011 4817 4823
    • (2011) Chem Mater , vol.23 , pp. 4817-4823
    • Goutam, A.1    Veggel, F.C.J.M.V.2
  • 294
    • 0033578677 scopus 로고    scopus 로고
    • Room temperature lasing at blue wavelengths in gallium nitride microcavities
    • T. Someya, R. Werner, A. Forchel, M. Catalano, R. Cingolani, and Y. Arakawa Room temperature lasing at blue wavelengths in gallium nitride microcavities Science 285 1999 1905 1906
    • (1999) Science , vol.285 , pp. 1905-1906
    • Someya, T.1    Werner, R.2    Forchel, A.3    Catalano, M.4    Cingolani, R.5    Arakawa, Y.6
  • 295
    • 84880622435 scopus 로고    scopus 로고
    • Gallium nitride as a material for spintronics
    • S.S. Khludkov, I.A. Prudaev, and O.P. Tolbanov Gallium nitride as a material for spintronics Russ Phys J 55 2013 903 909
    • (2013) Russ Phys J , vol.55 , pp. 903-909
    • Khludkov, S.S.1    Prudaev, I.A.2    Tolbanov, O.P.3
  • 296
    • 33749066506 scopus 로고    scopus 로고
    • Recent progress towards the development of ferromagnetic nitride semiconductors for spintronic applications
    • N. Newman, S.Y. Wu, H.X. Liu, J. Medvedeva, L. Gu, and R.K. Singh Recent progress towards the development of ferromagnetic nitride semiconductors for spintronic applications Phys Status Solidi 203 2006 2729 2737
    • (2006) Phys Status Solidi , vol.203 , pp. 2729-2737
    • Newman, N.1    Wu, S.Y.2    Liu, H.X.3    Medvedeva, J.4    Gu, L.5    Singh, R.K.6
  • 297
    • 84865686020 scopus 로고    scopus 로고
    • Rare-earth doped III-nitride semiconductors for semiconductor spintronics
    • H. Asahin, S. Hasegawa, Y.K. Zhou, and S. Emura Rare-earth doped III-nitride semiconductors for semiconductor spintronics J Lumin 132 2012 3136 3140
    • (2012) J Lumin , vol.132 , pp. 3136-3140
    • Asahin, H.1    Hasegawa, S.2    Zhou, Y.K.3    Emura, S.4
  • 298
    • 33746593008 scopus 로고    scopus 로고
    • Defective aluminium nitride nanotubes: A new way for spintronics? A density functional study
    • M. Simeoni, S. Santucci, S. Picozzi, and B. Delley Defective aluminium nitride nanotubes: a new way for spintronics? A density functional study Nanotechnology 17 2006 3166 3174
    • (2006) Nanotechnology , vol.17 , pp. 3166-3174
    • Simeoni, M.1    Santucci, S.2    Picozzi, S.3    Delley, B.4
  • 299
    • 84874192711 scopus 로고    scopus 로고
    • Dicalcium nitride as a two-dimensional electride with an anionic electron layer
    • K. Lee, S.W. Kim, Y. Toda, S. Matsuishi, and H. Hosono Dicalcium nitride as a two-dimensional electride with an anionic electron layer Nature 494 2013 336 341
    • (2013) Nature , vol.494 , pp. 336-341
    • Lee, K.1    Kim, S.W.2    Toda, Y.3    Matsuishi, S.4    Hosono, H.5
  • 300
    • 0029637640 scopus 로고
    • A covalent micro/nano-composite resistant to high-temperature oxidation
    • R. Riedel, H.J. Kleebe, H. Schonfelder, and F. Aldinger A covalent micro/nano-composite resistant to high-temperature oxidation Nature 374 1995 526
    • (1995) Nature , vol.374 , pp. 526
    • Riedel, R.1    Kleebe, H.J.2    Schonfelder, H.3    Aldinger, F.4
  • 301
    • 12644281612 scopus 로고    scopus 로고
    • Future is looking blue
    • P. Rigby Future is looking blue Nature 384 1996 610
    • (1996) Nature , vol.384 , pp. 610
    • Rigby, P.1
  • 302
  • 305
    • 0025456854 scopus 로고
    • Improved magnetic properties by transport of iron-based rare-earth intermetallic compounds in ammonia
    • J.M.D. Coey, and H. Sun Improved magnetic properties by transport of iron-based rare-earth intermetallic compounds in ammonia J Magn Magn Mater 87 1990 L251 L254
    • (1990) J Magn Magn Mater , vol.87 , pp. 251-L254
    • Coey, J.M.D.1    Sun, H.2


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