In-plane anisotropy in two-dimensional electron gas at LaAlO3/SrTiO3(110) interface

doi:10.1088/1674-1056/25/7/076802

中国物理B ›› 2016, Vol. 25 ›› Issue (7): 76802-076802.doi: 10.1088/1674-1056/25/7/076802

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

In-plane anisotropy in two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface

Sheng-Chun Shen(沈胜春), Yan-Peng Hong(洪彦鹏), Cheng-Jian Li(厉承剑), Hong-Xia Xue(薛红霞), Xin-Xin Wang(王欣欣), Jia-Cai Nie(聂家财)

Department of Physics, Beijing Normal University, Beijing 100875, China

收稿日期:2015-11-24 修回日期:2016-03-21 出版日期:2016-07-05 发布日期:2016-07-05
通讯作者: Jia-Cai Nie E-mail:jcnie@bnu.edu.cn
基金资助:
Project supported by the Ministry of Science and Technology of China (Grant Nos. 2013CB921701, 2013CBA01603, and 2014CB920903), the National Natural Science Foundation of China (Grant Nos. 10974019, 51172029, 91121012, 11422430, 11374035, 11474022, and 11474024), the Program for New Century Excellent Talents in the University of the Ministry of Education of China (Grant No. NCET-13-0054), and the Beijing Higher Education Young Elite Teacher Project, China (Grant No. YETP0238).

In-plane anisotropy in two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface

Sheng-Chun Shen(沈胜春), Yan-Peng Hong(洪彦鹏), Cheng-Jian Li(厉承剑), Hong-Xia Xue(薛红霞), Xin-Xin Wang(王欣欣), Jia-Cai Nie(聂家财)

Department of Physics, Beijing Normal University, Beijing 100875, China

Received:2015-11-24 Revised:2016-03-21 Online:2016-07-05 Published:2016-07-05
Contact: Jia-Cai Nie E-mail:jcnie@bnu.edu.cn
Supported by:
Project supported by the Ministry of Science and Technology of China (Grant Nos. 2013CB921701, 2013CBA01603, and 2014CB920903), the National Natural Science Foundation of China (Grant Nos. 10974019, 51172029, 91121012, 11422430, 11374035, 11474022, and 11474024), the Program for New Century Excellent Talents in the University of the Ministry of Education of China (Grant No. NCET-13-0054), and the Beijing Higher Education Young Elite Teacher Project, China (Grant No. YETP0238).

摘要/Abstract

摘要： A systematic study of the two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface reveals an anisotropy along two specific directions, [001] and [111]. The anisotropy becomes distinct for the interface prepared under high oxygen pressure with low carrier density. Angular dependence of magnetoresistance shows that the electron confinement is stronger along the [111] direction. Gate-tunable magnetoresistance reveals a clear in-plane anisotropy of the spin-orbit coupling, and the spin relaxation mechanism along both directions belongs to D'yakonov-Perel' (DP) scenario. Moreover, in-plane anisotropic superconductivity is observed for the sample with high carrier density, the superconducting transition temperature is lower but the upper critical field is higher along the [111] direction. This in-plane anisotropy could be ascribed to the anisotropic band structure along the two crystallographic directions.

关键词: oxide interfaces, two-dimensional electron gas, anisotropy

Abstract: A systematic study of the two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface reveals an anisotropy along two specific directions, [001] and [111]. The anisotropy becomes distinct for the interface prepared under high oxygen pressure with low carrier density. Angular dependence of magnetoresistance shows that the electron confinement is stronger along the [111] direction. Gate-tunable magnetoresistance reveals a clear in-plane anisotropy of the spin-orbit coupling, and the spin relaxation mechanism along both directions belongs to D'yakonov-Perel' (DP) scenario. Moreover, in-plane anisotropic superconductivity is observed for the sample with high carrier density, the superconducting transition temperature is lower but the upper critical field is higher along the [111] direction. This in-plane anisotropy could be ascribed to the anisotropic band structure along the two crystallographic directions.

Key words: oxide interfaces, two-dimensional electron gas, anisotropy

中图分类号: (Oxide surfaces)

68.47.Gh

73.20.-r (Electron states at surfaces and interfaces) 81.15.Fg (Pulsed laser ablation deposition)

沈胜春, 洪彦鹏, 厉承剑, 薛红霞, 王欣欣, 聂家财. In-plane anisotropy in two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface[J]. 中国物理B, 2016, 25(7): 76802-076802.

Sheng-Chun Shen(沈胜春), Yan-Peng Hong(洪彦鹏), Cheng-Jian Li(厉承剑), Hong-Xia Xue(薛红霞), Xin-Xin Wang(王欣欣), Jia-Cai Nie(聂家财). In-plane anisotropy in two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface[J]. Chin. Phys. B, 2016, 25(7): 76802-076802.

参考文献 35

[1]	Brinkman A, Huijben M, Van Zalk M, Huijben J, Zeitler U, Maan J C, van der Wiel W G, Rijnders G, Blank D H and Hilgenkamp H 2007 Nat. Mater. 6 493
[2]	Reyren N, Thiel S, Caviglia A D, Kourkoutis L F, Hammerl G, Richter C, Schneider C W, Kopp T, Ruetschi A S, Jaccard D, Gabay M, Muller D A, Triscone J M and Mannhart J 2007 Science 317 1196
[3]	Caviglia A D, Gariglio S, Reyren N, Jaccard D, Schneider T, Gabay M, Thiel S, Hammerl G, Mannhart J and Triscone J M 2008 Nature 456 624
[4]	Bert J A, Kalisky B, Bell C, Kim M, Hikita Y, Hwang H Y and Moler K A 2011 Nat. Phys. 7 767
[5]	Dikin D, Mehta M, Bark C, Folkman C, Eom C and Chandrasekhar V 2011 Phys. Rev. Lett. 107 056802
[6]	Li L, Richter C, Mannhart J and Ashoori R C 2011 Nat. Phys. 7 762
[7]	Shalom M B, Sachs M, Rakhmilevitch D, Palevski A and Dagan Y 2010 Phys. Rev. Lett. 104 126802
[8]	Caviglia A, Gabay M, Gariglio S, Reyren N, Cancellieri C and Triscone J M 2010 Phys. Rev. Lett. 104 126803
[9]	Fête A, Gariglio S, Caviglia A, Triscone J M and Gabay M 2012 Phys. Rev. B 86 201105
[10]	Ohtomo A and Hwang H Y 2004 Nature 427 423
[11]	Annadi A, Zhang Q, Renshaw Wang X, Tuzla N, Gopinadhan K, Lu W M, Roy Barman A, Liu Z Q, Srivastava A, Saha S, Zhao Y L, Zeng S W, Dhar S, Olsson E, Gu B, Yunoki S, Maekawa S, Hilgenkamp H, Venkatesan T and Ariando 2013 Nat. Commun. 4 1838
[12]	Herranz G, Sanchez F, Dix N, Scigaj M and Fontcuberta J 2012 Sci. Rep. 2 758
[13]	Pesquera D, Scigaj M, Gargiani P, Barla A, Herrero-Martín J, Pellegrin E, Valvidares S, Gázquez J, Varela M and Dix N 2014 Phys. Rev. Lett. 113 156802
[14]	Herranz G, Bergeal N, Lesueur J, Gazquez J, Scigaj M, Dix N, Sanchez F and Fontcuberta J 2013 arXiv:1305.2411
[15]	Han Y L, Shen S C, You J, Li H O, Luo Z Z, Li C J, Qu G L, Xiong C M, Dou R F, He L, Naugle D, Guo G P and Nie J C 2014 Appl. Phys. Lett. 105 192603
[16]	Herranz G, Singh G, Bergeal N, Jouan A, Lesueur J, Gazquez J, Varela M, Scigaj M, Dix N, Sanchez F and Fontcuberta J 2015 Nat. Commun. 6 6028
[17]	Gopinadhan K, Annadi A, Kim Y, Srivastava A, Kumar B, Chen J S, Coey J M D, Ariando and Venkatesan T 2015 Adv. Electr. Matters 1500114 1
[18]	Wang Z M, Zhong Z C, Hao X F, Gerhold S, Stoger B, Schmid M, Sanchez-Barriga J, Varykhalov A, Franchini C, Held K and Diebold U 2014 Proc. Natl. Acad. Sci. USA 111 3933
[19]	Shalom M B, Tai C, Lereah Y, Sachs M, Levy E, Rakhmilevitch D, Palevski A and Dagan Y 2009 Phys. Rev. B 80 140403
[20]	Komnik Y F, Andrievskii V V and Berkutov I B 2007 Low Temp. Phys. 33 79
[21]	Kawaguti T and Fujimori Y 1983 J. Phys. Soc. Jpn. 52 722
[22]	Spirito D, Di Gaspare L, Evangelisti F, Di Gaspare A, Giovine E and Notargiacomo A 2012 Phys. Rev. B 85 235314
[23]	Hikami S, Larkin A I and Nagaoka Y 1980 Prog. Theor. Phys. 63 707
[24]	Bergman G 1982 Phys. Rev. Lett. 48 1046
[25]	Lee P A and Ramakrishnan T V 1985 Rev. Mod. Phys. 57 287
[26]	Stornaiuolo D, Gariglio S, Fête A, Gabay M, Li D, Massarotti D and Triscone J M 2014 Phys. Rev. B 90 235426
[27]	Neville R C, Mead C A and Hoeneise B 1972 J. Appl. Phys. 43 2124
[28]	Maekawa S and Fukuyama H 1981 J. Phys. Soc. Jpn. 50 2516
[29]	Mattheiss L 1972 Phys. Rev. B 6 4740
[30]	Dyakonov M and Perel V 1972 Soviet Physics Solid State USSR 13 3023
[31]	Elliott R J 1954 Phys. Rev. 96 266
[32]	Yafet Y 1963 Solid State Phys. 14 1
[33]	Gurevich A, Patnaik S, Braccini V, Kim K H, Mielke C, Song X, Cooley L D, Bu S D, Kim D M, Choi J H, Belenky L J, Giencke J, Lee M K, Tian W, Pan X Q, Siri A, Hellstrom E E, Eom C B and Larbalestier D C 2004 Supercond. Sci. Tech. 17 278
[34]	Bugoslavsky Y, Cohen L, Perkins G, Polichetti M, Tate T, Gwilliam R and Caplin A 2001 Nature 411 561
[35]	Fisher D S, Fisher M P and Huse D A 1991 Phys. Rev. B 43 130

In-plane anisotropy in two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface

In-plane anisotropy in two-dimensional electron gas at LaAlO₃/SrTiO₃(110) interface

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