AlOx/LiF composite protection layer for Cr-doped (Bi, Sb)2Te3 quantum anomalous Hall films

doi:10.1088/1674-1056/25/8/087307

中国物理B ›› 2016, Vol. 25 ›› Issue (8): 87307-087307.doi: 10.1088/1674-1056/25/8/087307

• SPECIAL TOPIC—Soft matter and biological physics (Review) • 上一篇下一篇

AlO_x/LiF composite protection layer for Cr-doped (Bi, Sb)₂Te₃ quantum anomalous Hall films

Yunbo Ou(欧云波), Yang Feng(冯洋), Xiao Feng(冯硝), Zhenqi Hao(郝镇齐), Liguo Zhang(张立果), Chang Liu(刘畅), Yayu Wang(王亚愚), Ke He(何珂), Xucun Ma(马旭村), Qikun Xue(薛其坤)

1 Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China

收稿日期:2016-03-03 修回日期:2016-03-26 出版日期:2016-08-05 发布日期:2016-08-05
通讯作者: Yayu Wang, Ke He E-mail:yayuwang@tsinghua.edu.cn;kehe@tsinghua.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11325421).

AlO_x/LiF composite protection layer for Cr-doped (Bi, Sb)₂Te₃ quantum anomalous Hall films

Yunbo Ou(欧云波)¹, Yang Feng(冯洋)², Xiao Feng(冯硝)^1,2, Zhenqi Hao(郝镇齐)², Liguo Zhang(张立果)², Chang Liu(刘畅)², Yayu Wang(王亚愚)², Ke He(何珂)², Xucun Ma(马旭村)², Qikun Xue(薛其坤)²

1 Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China

Received:2016-03-03 Revised:2016-03-26 Online:2016-08-05 Published:2016-08-05
Contact: Yayu Wang, Ke He E-mail:yayuwang@tsinghua.edu.cn;kehe@tsinghua.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11325421).

摘要/Abstract

摘要：

We have realized robust quantum anomalous Hall samples by protecting Cr-doped (Bi, Sb)₂Te₃ topological insulator films with a combination of LiF and AlO_x capping layers. The AlO_x/LiF composite capping layer well keeps the quantum anomalous Hall states of Cr-doped (Bi, Sb)₂Te₃ films and effectively prevent them from degradation induced by ambient conditions. The progress is a key step towards the realization of the quantum phenomena in heterostructures and devices based on quantum anomalous Hall system.

关键词: quantum anomalous Hall effect, AlO_x, LiF, protection layer

Abstract:

Key words: quantum anomalous Hall effect, AlO_x, LiF, protection layer

中图分类号: (Electronic transport phenomena in thin films)

73.50.-h

03.65.Vf (Phases: geometric; dynamic or topological)

欧云波, 冯洋, 冯硝, 郝镇齐, 张立果, 刘畅, 王亚愚, 何珂, 马旭村, 薛其坤. AlO_x/LiF composite protection layer for Cr-doped (Bi, Sb)₂Te₃ quantum anomalous Hall films[J]. 中国物理B, 2016, 25(8): 87307-087307.

Yunbo Ou(欧云波), Yang Feng(冯洋), Xiao Feng(冯硝), Zhenqi Hao(郝镇齐), Liguo Zhang(张立果), Chang Liu(刘畅), Yayu Wang(王亚愚), Ke He(何珂), Xucun Ma(马旭村), Qikun Xue(薛其坤). AlO_x/LiF composite protection layer for Cr-doped (Bi, Sb)₂Te₃ quantum anomalous Hall films[J]. Chin. Phys. B, 2016, 25(8): 87307-087307.

参考文献 24

[1]	Kane C L and Mele E J 2005 Phys. Rev. Lett. 95 3
[2]	Zhang H J, Liu C X, Qi X L, Dai X, Fang Z and Zhang S C 2009 Nat. Phys. 5 438
[3]	Bernevig B A, Hughes T L and Zhang S C 2006 Science 314 1757
[4]	Chen Y L, Analytis J G, Chu J H, Liu Z K, Mo S K, Qi X L, Zhang H J, Lu D H, Dai X, Fang Z, Zhang S C, Fisher I R, Hussain Z and Shen Z X 2009 Science 325 178
[5]	Liu C X, Qi X L, Dai X, Fang Z and Zhang S C 2008 Phys. Rev. Lett. 101 146802
[6]	Qi X L, Hughes T L and Zhang S C 2008 Phys. Rev. B 78 195424
[7]	He K, Wang Y and Xue Q K 2013 Natl. Sci. Rev. 1 38
[8]	Wang J, Lian B, Qi X L and Zhang S C 2015 Phys. Rev. B 92 064520
[9]	Morimoto T, Furusaki A and Nagaosa N 2015 Phys. Rev. B 92 085113
[10]	Wang J, Lian B, Qi X L and Zhang S C 2015 Phys. Rev. B 92 081107
[11]	Qi X L and Zhang S C 2011 Rev. Mod. Phys. 83 1057
[12]	Qi X L, Li R D, Zang J D and Zhang S C 2009 Science 323 1184
[13]	Beenakker C W J 2013 Ann. Rev. Condens. Matter Phys. 4 113
[14]	Alicea J 2012 Rep. Prog. Phys. 75 076501
[15]	Chang C Z, Zhang J, Feng X, Shen J, Zhang Z, Guo M, Li K, Ou Y, Wei P, Wang L L, Ji Z Q, Feng Y, Ji S, Chen X, Jia J, Dai X, Fang Z, Zhang S C, He K, Wang Y, Lu L, Ma X C and Xue Q K 2013 Science 340 167
[16]	Chang C Z, Zhao W W, Kim D Y, Zhang H J, Assaf B A, Heiman D, Zhang S C, Liu C X, Chan M H W and Moodera J S 2015 Nat. Mater. 14 473
[17]	Mogi M, Yoshimi R, Tsukazaki A, Yasuda K, Kozuka Y, Takahashi K S, Kawasaki M and Tokura Y 2015 Appl. Phys. Lett. 107 182401
[18]	He K, Ma X C, Chen X, Lü L, Wang Y Y and Xue Q K 2013 Chin. Phys. B 22 067305
[19]	Yu R, Zhang W, Zhang H J, Zhang S C, Dai X and Fang Z 2010 Science 329 61
[20]	Park J, Soh Y A, Aeppli G, Feng X, Ou Y B, He K and Xue Q K 2015 Sci. Rep. 5 11595
[21]	Wang N P, Rohlfing M, Kruger P and Pollmann J 2003 Phys. Rev. B 67
[22]	Yang W M, Lin C J, Liao J and Li Y Q 2013 Chin. Phys. B 22 097202
[23]	Chen J, Qin H J, Yang F, Liu J, Guan T, Qu F M, Zhang G H, Shi J R, Xie X C, Yang C L, Wu K H, Li Y Q and Lü L 2010 Phys. Rev. Lett. 105 176602
[24]	Stubblef C B and Bach R O 1972 J. Chem. Eng. Data 17 491

AlO_x/LiF composite protection layer for Cr-doped (Bi, Sb)₂Te₃ quantum anomalous Hall films

AlO_x/LiF composite protection layer for Cr-doped (Bi, Sb)₂Te₃ quantum anomalous Hall films

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