Modulated two-dimensional charge-carrier density in LaTiO3-layer-doped LaAlO3/SrTiO3 heterostructure

ACS Applied Materials and Interfaces

Volumn 7, Issue 9, 2015, Pages 5305-5311

  Nazir, Safdar ^a   Bernal, Camille ^a   Yang, Kesong ^a  

^a UNIVERSITY OF CALIFORNIA SAN DIEGO   (United States)

Author keywords

2DEG; charge carrier density; doping; first principles; oxide heterostructure; perovskite

Indexed keywords

ALUMINUM COMPOUNDS; CALCULATIONS; CARRIER CONCENTRATION; CHARGE CARRIERS; DOPING (ADDITIVES); ELECTRONIC PROPERTIES; HALL MOBILITY; HOLE MOBILITY; LANTHANUM COMPOUNDS; PEROVSKITE; SOLID STATE DEVICES; STRONTIUM COMPOUNDS; TITANIUM DIOXIDE; TRANSITION METAL OXIDES; TRANSITION METALS; TWO DIMENSIONAL ELECTRON GAS;

DOPING EFFECTS; FIRST PRINCIPLES; NANOSCALE SOLIDS; ORBITAL OCCUPATION; PARTIAL DENSITY OF STATE; SPIN-POLARIZED DENSITY FUNCTIONAL THEORY; TWO-DIMENSIONAL ELECTRON GAS (2DEG); UNDOPED SYSTEMS;

DENSITY FUNCTIONAL THEORY;

EID: 84924546499     PISSN: 19448244     EISSN: 19448252     Source Type: Journal    
DOI: 10.1021/am508662q     Document Type: Article

References (58)

1. 3 Heterointerface Nature 2004, 427, 423-426
2. Brinkman, A.; Huijben, M.; van Zalk, M.; Huijben, J.; Zeitler, U.; Maan, J. C.; van der Wiel, W. G.; Rijnders, G.; Blank, D. H. A.; Hilgenkamp, H. Magnetic Effects at the Interface between Non-Magnetic Oxides Nat. Mater. 2007, 6, 493-496
3. 3 Interface Nat. Commun. 2012, 5, 4291
4. Mannhart, J.; Schlom, D. G. Oxide Interfaces-An Opportunity for Electronics Science 2010, 327, 1607-1611
5. 3 Heterostructures Nat. Commun. 2012, 3, 922
6. Thiel, S.; Hammerl, G.; Schmehl, A.; Schneider, C. W.; Mannhart, J. Tunable Quasi-Two-Dimensional Electron Gases in Oxide Heterostructures Science 2006, 313, 1942-1945
7. 3 Interface Ground State Nature 2008, 456, 624-627
8. Reyren, N.; Thiel, S.; Caviglia, A. D.; Kourkoutis, L. F.; Hammer, G.; Richter, C.; Schneider, C. W.; Kopp, T.; Rüetschi, A. S.; Jaccard, D.; Gabay, M.; Muller, D. A.; Triscone, J. M.; Mannhart, J. Superconducting Interfaces Between Insulating Oxides Science 2007, 317, 1196-1199
9. 3 Interface: A Magnetotransport Study Phys. Rev. Lett. 2010, 104, 126802
10. 3 Interface Nat. Phys. 2011, 7, 767-771
11. 3 Interfaces Nat. Phys. 2011, 7, 762-766
12. 3 Interface Nat. Mater. 2013, 12, 703-706
13. Cen, C.; Thiel, S.; Hammerl, G.; Schneider, C. W.; Andersen, K. E.; Hellberg, C. S.; Mannhart, J.; Levy, J. Nanoscale Control of an Interfacial Metal-Insulator Transition at Room Temperature Nat. Mater. 2008, 7, 298-302
14. 3 Interface: The Role of Interfacial Ti 3 d Electrons Phys. Rev. B 2012, 85, 020407
15. 3 Heterostructures Phys. Rev. Lett. 2013, 111, 087204
16. Yu, L.; Zunger, A. A Polarity-Induced Defect Mechanism for Conductivity and Magnetism at Polar-Nonpolar Oxide Interfaces Nat. Commun. 2014, 5, 5118
17. 3 Interfaces: The Role of Oxygen Vacancies and Electronic Reconstruction Phys. Rev. X 2013, 3, 021010
18. Nakagawa, N.; Hwang, H. Y.; Muller, D. A. Why Some Interfaces Cannot be Sharp Nat. Mater. 2006, 5, 204-209
19. 3 (001) Interface J. Phys. Conden. Matt. 2010, 22, 312201.
20. Dikin, D. A.; Mehta, M.; W, C.; Folkman, C. M.; Eom, C. B.; Chandrasekhar, V. Coexistence of Superconductivity and Ferromagnetism in Two Dimensions Phys. Rev. Lett. 2011, 107, 056802
21. 3 Multilayers Phys. Rev. Lett. 2012, 109, 257207
22. 3(001) Heterostructure ACS Appl. Mater. Interfaces 2014, 6, 22351-22358
23. 3 Heterostructures via Strain Engineering Appl. Phys. Lett. 2014, 105, 141602
24. 3 Interfaces J. Phys. Conden. Matt. 2013, 25, 175005
25. 3 Heterostructures Appl. Phys. Lett. 2013, 102, 091601
26. 3 Heterostructures Phys. Rev. B 2014, 89, 224413
27. Disa, A. S.; Kumah, D. P.; Malashevich, A.; Chen, H.; Arena, D. A.; Specht, E. D.; Ismail-Beigi, S.; Walker, F. J.; Ahn, C. H. Orbital Engineering in Symmetry-Breaking Polar Heterostructures Phys. Rev. Lett. 2015, 114, 026801
28. Cen, C.; Thiel, S.; Mannhart, J.; Levy, J. Oxide Nanoelectronics on Demand Science 2009, 323, 1026-1030
29. 3 Interface Phys. Rev. B 2014, 90, 235426
30. 3 (001) Interface by Epitaxial Strain Proc. Natl. Acad. Sci. U.S.A 2011, 108, 4720-4724
31. 3 Heterointerfaces Nat. Mater. 2013, 12, 1091-1095
32. Yajima, T.; Hikita, Y.; Hwang, H. Y. A Heteroepitaxial Perovskite Metal-Base Transistor Nat. Mater. 2011, 10, 198-201
33. Rastogi, A.; Kushwaha, A. K.; Shiyani, T.; Gangawar, A.; Budhani, R. C. Electrically Tunable Optical Switching of a Mott Insulator-Band Insulator Interface Adv. Mater. 2010, 22, 4448-4451
34. 3 Interfaces Appl. Phys. Lett. 2009, 94, 172101
35. 3 Phys. Rev. B 2011, 83, 193106
36. Choi, W. S.; Lee, S.; Cooper, V. R.; Lee, H. N. Fractionally δ-Doped Oxide Superlattices for Higher Carrier Mobilities Nano Lett. 2012, 12, 4590-4594
37. 3 Heterostructures Phys. Rev. B 2014, 89, 125127
38. Kresse, G.; Furthmüller, J. Efficient Iterative Schemes for ab initio Total-Energy Calculations using a Plane-Wave Basis Set Phys. Rev. B 1996, 54, 11169-11186
39. Perdew, J. P.; Burke, K.; Ernzerhof, M. Generalized Gradient Approximation Made Simple Phys. Rev. Lett. 1996, 77, 3865-3868
40. Anisimov, V. I.; Zaanen, J.; Andersen, O. K. Band Theory and Mott insulators: Hubbard U instead of Stoner I. Phys. Rev. B 1991, 44, 943-954
41. 2 Phys. Rev. B 2010, 81, 033202
42. 2 J. Phys. D: Appl. Phys. 2014, 47, 275101
43. 3 Interface Phys. Rev. B 2008, 78, 205106
44. 3(001) Interface by Metallic Contacts Phys. Rev. B 2012, 85, 125404
45. 3: Variation of Mott-Hubbard Gap Features with Change of Electron Correlation and Band Filling Phys. Rev. B 1995, 51, 9581-9588
46. Janesko, B. G.; Henderson, T. M.; Scuseria, G. E. Screened Hybrid Density Functionals for Solid-State Chemistry and Physics J. Phys. Condens. Matter 2009, 11, 443-454
47. 3 with Screened Hybrid Density Functional Theory Phys. Rev. B 2011, 84, 115122
48. 3 Studied with a Screened Hybrid Functional Phys. Rev. B 2013, 87, 035107
49. Franchini, C. Hybrid Functionals Applied to Perovskites J. Phys.: Conden. Matt. 2014, 26, 253202
50. 3 Interface Revisited: A Hybrid Functional Study Phys. Rev. B 2013, 88, 045119
51. 3 Superlattices Phys. Rev. Lett. 2006, 97, 056802
52. Hamann, D. R.; Muller, D. A.; Hwang, H. Y. Lattice-Polarization Effects on Electron-Gas Charge Densities in Ionic Superlattices Phys. Rev. B 2006, 73, 195403
53. 3 Superlattices J. Appl. Phys. 2008, 103, 07B508
54. 3 Interface Phys. Rev. Lett. 2009, 102, 166804
55. 3 Superlattices Phys. Rev. B 2013, 88, 155111
56. Huijben, M.; Rijnders, G.; Blank, D. H. A.; Bals, S.; Aert, S. V.; Verbeeck, J.; Tendeloo, G. V.; Brinkman, A.; Hilgenkamp, H. Electronically Coupled Complementary Interfaces Between Perovskite Band Insulators Nat. Mater. 2006, 5, 556-560
57. 3 Interface Phys. Rev. B 2007, 75, 121404
58. 3 Interface Phys. Rev. B 2009, 79, 245411