Iron-based bimagnetic core/shell nanostructures in SiO2: A TEM, MEIS, and energy-resolved XPS analysis

Journal of Nanoparticle Research

Volumn 14, Issue 10, 2012, Pages

  Leveneur, Jérôme ^a,b   Sanchez, Darío F ^c   Kennedy, John ^a,d   Grande, Pedro L ^c   Williams, Grant V M ^d   Metson, James B ^b,d   Cowie, Bruce C C ^e  

^a GNS SCIENCE   (New Zealand)

^b UNIVERSITY OF AUCKLAND   (New Zealand)

^c FEDERAL UNIVERSITY OF RIO GRANDE DO SUL   (Brazil)

^d VICTORIA UNIVERSITY OF WELLINGTON   (New Zealand)

^e AUSTRALIAN SYNCHROTRON   (Australia)

Author keywords

Electron microscopy; Implantation; Magnetic nanoparticles; Medium energy ion scattering (MEIS); X ray photoelectron spectroscopy (XPS)

Indexed keywords

ELECTRON MICROSCOPY; HIGH RESOLUTION TRANSMISSION ELECTRON MICROSCOPY; HYSTERESIS; ION BEAMS; ION IMPLANTATION; IONS; IRON; IRON METALLOGRAPHY; MAGNETIC MOMENTS; MAGNETIC NANOPARTICLES; METAL NANOPARTICLES; PHOTOELECTRONS; PHOTONS; PLASMA INTERACTIONS; SILICA; SILICON; SIO2 NANOPARTICLES; TEMPERATURE; X RAY PHOTOELECTRON SPECTROSCOPY;

CHEMICAL CHANGE; CORE/SHELL NANOPARTICLES; CRYSTALLINE NANOPARTICLES; ELECTRON BEAM ANNEALING; HIGH-VACUUM CONDITIONS; LOW TEMPERATURES; MAGNETIZATION DATA; MEDIUM ENERGY ION SCATTERING;

ELECTRON ENERGY LOSS SPECTROSCOPY;

NANOMATERIAL; SILICON DIOXIDE;

ARTICLE; ATOM; ELECTRON BEAM; HYSTERESIS; LOW TEMPERATURE; MAGNETISM; MEDIUM ENERGY ION SCATTERING; PRIORITY JOURNAL; RADIATION SCATTERING; ROOM TEMPERATURE; ROTATION; STOICHIOMETRY; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X RAY PHOTOELECTRON SPECTROSCOPY;

EID: 84867029734     PISSN: 13880764     EISSN: 1572896X     Source Type: Journal    
DOI: 10.1007/s11051-012-1149-1     Document Type: Article

References (25)

1. Atkinson A, Gardner JW (1981) The diffusion of Fe3? in amorphous SiO2 and the protective properties of SiO2 layers. Corros Sci 21(1):49-58 (Pubitemid 11479028)
2. Barick KC, Varaprasad BSDCS, Bahadur D (2010) Structural and magnetic properties of c-and e-Fe2O3 nanoparticles dispersed in silica matrix. J Non-Cryst Solids 356(3): 153-159
3. Betzig E, Trautman JK, Wolfe R, Gyorgy EM, Finn PL, Kryder MH, Chang C-H (1992) Near-field magneto-optics and high density data storage. Appl Phys Lett 61(2):142-144
4. Cowburn RP (2002) Magnetic nanodots for device applications. J Magn Magn Mater 242-245(Part I):505-511 (Pubitemid 34544881)
5. De G, Tapfer L, Catalano M, Battaglin G, Caccavale F, Gonella F, Mazzoldi P, Haglund RF Jr (1996) Formation of copper and silver nanometer dimension clusters in silica by the sol-gel process. Appl Phys Lett 68(26):3820
6. Dempsey NM, Ranno L, Givord D, Gonzalo J, Serna R, Fei GT, Petford-Long AK, Doole RC, Hole DE (2001) Magnetic behavior of Fe:Al2O3 nanocomposite films produced by pulsed laser deposition. J Appl Phys 90(12):6268 (Pubitemid 34046792)
7. Haverkamp RG, Marshall AT, Cowie BCC (2011) Energy resolved XPS depth profile of (IrO2, RuO2, Sb2O5, SnO2) electrocatalyst powder to reveal core-shell nanoparticle structure. Surf Interface Anal 43(5):847-855
8. Johnston-Peck AC, Wang J, Tracy JB (2009) Synthesis and structural and magnetic characterization of Ni(Core)/NiO(Shell) nanoparticles. ACS Nano 3(5):1077-1084
9. Kennedy J, Leveneur J, Takeda Y, Williams GVM, Kupke S, Mitchell DRG, Markwitz A (2011a) Evolution of the structure and magneto-optical properties of ion beam synthesized iron nanoclusters. J Mater Sci 47(3): 1127-1134
10. Kennedy J, Leveneur J,Williams GVM,Mitchell D,Markwitz A (2011b) Fabrication of surface magnetic nanoclusters using low energy ion implantation and electron beam. Nanotechnology 22:115602
11. Kimizuka N, Katsura T (1975) Standard free energy of formation of YFeO3, Y3Fe5O12, and a new compound YFe2O4 in the Fe-Fe2O3-Y2O3 system at 1200-C. J Solid State Chem 13(3):176-181
12. Leveneur J, Kennedy J, Williams GVM, Metson J, Markwitz A (2011a) Large room temperature magnetoresistance in ion beam synthesized surface Fe nanoclusters on SiO2. Appl Phys Lett 98:053111
13. Leveneur J, Waterhouse GIN, Kennedy J, Metson JB, Mitchell DRG (2011b) Nucleation and Growth of Fe Nanoparticles in SiO2: A TEM, XPS, and Fe L-edge XANES investigation. J Phys Chem C 20985(43):20978
14. O'Handley RC (1999) Modern magnetic materials: Principles and application. Wiley-Interscience, New York
15. Ong QK, Wei A, Lin X-M (2009) Exchange bias in Fe/Fe3O4 core-shell magnetic nanoparticles mediated by frozen interfacial spins. Phys Rev B 80(13):134418
16. Powell CJ, Jablonski A (2001) NIST electron effectiveattenuation-length database: Version 1.2. Gaithersburg
17. Ramappa DA, Henley WB (1999) Diffusion of iron in silicon dioxide. J Electrochem Soc 146(10):3773-3777 (Pubitemid 30515055)
18. Ramaswamy V, Haynes TE, White CW, MoberlyChan WJ, Roorda S, Aziz MJ (2005) Synthesis of nearly monodisperse embedded nanoparticles by separating nucleation and growth in ion implantation. Nano Lett 5(2):373-377 (Pubitemid 40308300)
19. Sanchez DF, Luce FP, Fabrim ZE, Sortica MA, Fichtner PFP, Grande PL (2011) Structural characterization of Pb nanoislands in SiO2/Si interface synthesized by ion implantation through MEIS analysis. Surf Sci 605(7-8):654-658
20. Skumryev V, Stoyanov S, Zhang Y, Hadjipanayis G, Givord D, Nogués J (2003) Beating the superparamagnetic limit with exchange bias. Nature 423:850-853 (Pubitemid 36781272)
21. Sortica MA, Grande PL, Machado G, Miotti L (2009) Characterization of nanoparticles through medium-energy ion scattering. J Appl Phys 106:114320
22. Sun S, Murray CB, Weller D, Folks L, Moser A (2000) Monodisperse FePt nanoparticles and ferromagnetic FePt nanocrystal superlattices. Science 287(5460):1989-1992 (Pubitemid 30158668)
23. Tikhomirov VK, Chibotaru LF, Saurel D, Gredin P, Mortier M, Moshchalkov VV (2009) Er3?-doped nanoparticles for optical detection of magnetic field. Nano Lett 9(2): 721-724
24. Yuan CL (2010) Room-temperature coercivity of Ni/NiO core/shell nanoparticles fabricated by pulsed laser deposition. J Phys Chem C 114(5):2124-2126
25. Zeng H, Li J, Wang ZL, Liu JP, Sun S (2004) Bimagnetic core/shell FePt/Fe3O4 nanoparticles. Nano Lett 4(1):187-190