Quantum Anomalous Parity Hall Effect in Magnetically Disordered Topological Insulator Films

被引：45

作者：

Haim, Arbel ^{[1
,2
,3
]}

Ilan, Roni ^{[4
]}

Alicea, Jason ^{[1
,2
,3
]}

机构：

[1] CALTECH, Dept Phys, Pasadena, CA 91125 USA

[2] CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA

[3] CALTECH, Walter Burke Inst Theoret Phys, Pasadena, CA 91125 USA

[4] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 04期

关键词：

SINGLE DIRAC CONE; STATE; LOCALIZATION; REALIZATION; BI2SE3;

D O I：

10.1103/PhysRevLett.123.046801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In magnetically doped thin-film topological insulators, aligning the magnetic moments generates a quantum anomalous Hall phase supporting a single chiral edge state. We show that as the system demagnetizes, disorder from randomly oriented magnetic moments can produce a "quantum anomalous parity Hall" phase with helical edge modes protected by a unitary reflection symmetry. We further show that introducing superconductivity, combined with selective breaking of reflection symmetry by a gate, allows for creation and manipulation of Majorana zero modes via purely electrical means and at zero applied magnetic field.

引用

页数：6

共 59 条

[21] A topological Dirac insulator in a quantum spin Hall phase [J].

Hsieh, D. ;

Qian, D. ;

Wray, L. ;

Xia, Y. ;

Hor, Y. S. ;

Cava, R. J. ;

Hasan, M. Z. .

NATURE, 2008, 452 (7190) :970-U5

[22] STATISTICAL SCATTERING-THEORY, THE SUPERSYMMETRY METHOD AND UNIVERSAL CONDUCTANCE FLUCTUATIONS [J].

IIDA, S ;

WEIDENMULLER, HA ;

ZUK, JA .

ANNALS OF PHYSICS, 1990, 200 (02) :219-270

[23] Quantum anomalous Hall effect with tunable Chern number in magnetic topological insulator film [J].

Jiang, Hua ;

Qiao, Zhenhua ;

Liu, Haiwen ;

Niu, Qian .

PHYSICAL REVIEW B, 2012, 85 (04)

[24] Numerical study of the topological Anderson insulator in HgTe/CdTe quantum wells [J].

Jiang, Hua ;

Wang, Lei ;

Sun, Qing-feng ;

Xie, X. C. .

PHYSICAL REVIEW B, 2009, 80 (16)

[25] Giant anisotropic magnetoresistance in a quantum anomalous Hall insulator [J].

Kandala, Abhinav ;

Richardella, Anthony ;

Kempinger, Susan ;

Liu, Chao-Xing ;

Samarth, Nitin .

NATURE COMMUNICATIONS, 2015, 6

[26] Quantum spin Hall effect in graphene [J].

Kane, CL ;

Mele, EJ .

PHYSICAL REVIEW LETTERS, 2005, 95 (22)

[27] Quantum spin hall insulator state in HgTe quantum wells [J].

Koenig, Markus ;

Wiedmann, Steffen ;

Bruene, Christoph ;

Roth, Andreas ;

Buhmann, Hartmut ;

Molenkamp, Laurens W. ;

Qi, Xiao-Liang ;

Zhang, Shou-Cheng .

SCIENCE, 2007, 318 (5851) :766-770

[28] Scale-Invariant Quantum Anomalous Hall Effect in Magnetic Topological Insulators beyond the Two-Dimensional Limit [J].

Kou, Xufeng ;

Guo, Shih-Ting ;

Fan, Yabin ;

Pan, Lei ;

Lang, Murong ;

Jiang, Ying ;

Shao, Qiming ;

Nie, Tianxiao ;

Murata, Koichi ;

Tang, Jianshi ;

Wang, Yong ;

He, Liang ;

Lee, Ting-Kuo ;

Lee, Wei-Li ;

Wang, Kang L. .

PHYSICAL REVIEW LETTERS, 2014, 113 (13)

[29] Observation of superparamagnetism in coexistence with quantum anomalous Hall C = ±1 and C = 0 Chern states [J].

Lachman, Ella O. ;

Mogi, Masataka ;

Sarkar, Jayanta ;

Uri, Aviram ;

Bagani, Kousik ;

Anahory, Yonathan ;

Myasoedov, Yuri ;

Huber, Martin E. ;

Tsukazaki, Atsushi ;

Kawasaki, Masashi ;

Tokura, Yoshinori ;

Zeldov, Eli .

NPJ QUANTUM MATERIALS, 2017, 2

[30] Visualization of superparamagnetic dynamics in magnetic topological insulators [J].

Lachman, Ella O. ;

Young, Andrea F. ;

Richardella, Anthony ;

Cuppens, Jo ;

Naren, H. R. ;

Anahory, Yonathan ;

Meltzer, Alexander Y. ;

Kandala, Abhinav ;

Kempinger, Susan ;

Myasoedov, Yuri ;

Huber, Martin E. ;

Samarth, Nitin ;

Zeldov, Eli .

SCIENCE ADVANCES, 2015, 1 (10)

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