Terahertz Response and Colossal Kerr Rotation from the Surface States of the Topological Insulator Bi2Se3

被引：202

作者：

Aguilar, R. Valdes ^{[1
,2
]}

Stier, A. V. ^{[1
,2
,3
]}

Liu, W. ^{[1
,2
]}

Bilbro, L. S. ^{[1
,2
]}

George, D. K. ^{[3
]}

Bansal, N. ^{[4
]}

Wu, L. ^{[1
,2
]}

Cerne, J. ^{[3
]}

Markelz, A. G. ^{[3
]}

Oh, S. ^{[4
]}

Armitage, N. P. ^{[1
,2
]}

机构：

[1] Johns Hopkins Univ, Inst Quantum Matter, Baltimore, MD 21218 USA

[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[3] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA

[4] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 08期

基金：

美国国家科学基金会;

关键词：

BI2TE3;

D O I：

10.1103/PhysRevLett.108.087403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the THz response of thin films of the topological insulator Bi2Se3. At low frequencies, transport is essentially thickness independent showing the dominant contribution of the surface electrons. Despite their extended exposure to ambient conditions, these surfaces exhibit robust properties including narrow, almost thickness-independent Drude peaks, and an unprecedentedly large polarization rotation of linearly polarized light reflected in an applied magnetic field. This Kerr rotation can be as large as 65 degrees and can be explained by a cyclotron resonance effect of the surface states.

引用

页数：5

共 35 条

[1] Electrically Detected Interferometry of Majorana Fermions in a Topological Insulator [J].

Akhmerov, A. R. ;

Nilsson, Johan ;

Beenakker, C. W. J. .

PHYSICAL REVIEW LETTERS, 2009, 102 (21)

[2] STM Imaging of Electronic Waves on the Surface of Bi2Te3: Topologically Protected Surface States and Hexagonal Warping Effects [J].

Alpichshev, Zhanybek ;

Analytis, J. G. ;

Chu, J. -H. ;

Fisher, I. R. ;

Chen, Y. L. ;

Shen, Z. X. ;

Fang, A. ;

Kapitulnik, A. .

PHYSICAL REVIEW LETTERS, 2010, 104 (01)

[3] Bulk Fermi surface coexistence with Dirac surface state in Bi2Se3: A comparison of photoemission and Shubnikov-de Haas measurements [J].

Analytis, James G. ;

Chu, Jiun-Haw ;

Chen, Yulin ;

Corredor, Felipe ;

McDonald, Ross D. ;

Shen, Z. X. ;

Fisher, Ian R. .

PHYSICAL REVIEW B, 2010, 81 (20)

[4]

Bansal N., ARXIV11045709

[5] Reactive Chemical Doping of the Bi2Se3 Topological Insulator [J].

Benia, Hadj M. ;

Lin, Chengtian ;

Kern, Klaus ;

Ast, Christian R. .

PHYSICAL REVIEW LETTERS, 2011, 107 (17)

[6] Coexistence of the topological state and a two-dimensional electron gas on the surface of Bi2Se3 [J].

Bianchi, Marco ;

Guan, Dandan ;

Bao, Shining ;

Mi, Jianli ;

Iversen, Bo Brummerstedt ;

King, Philip D. C. ;

Hofmann, Philip .

NATURE COMMUNICATIONS, 2010, 1

[7] Strong surface scattering in ultrahigh-mobility Bi2Se3 topological insulator crystals [J].

Butch, N. P. ;

Kirshenbaum, K. ;

Syers, P. ;

Sushkov, A. B. ;

Jenkins, G. S. ;

Drew, H. D. ;

Paglione, J. .

PHYSICAL REVIEW B, 2010, 81 (24)

[8] Tunable surface conductivity in Bi2Se3 revealed in diffusive electron transport [J].

Chen, J. ;

He, X. Y. ;

Wu, K. H. ;

Ji, Z. Q. ;

Lu, L. ;

Shi, J. R. ;

Smet, J. H. ;

Li, Y. Q. .

PHYSICAL REVIEW B, 2011, 83 (24)

[9] Experimental Realization of a Three-Dimensional Topological Insulator, Bi2Te3 [J].

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. ;

Shen, Z. -X. .

SCIENCE, 2009, 325 (5937) :178-181

[10] Magnetoelectric Polarizability and Axion Electrodynamics in Crystalline Insulators [J].

Essin, Andrew M. ;

Moore, Joel E. ;

Vanderbilt, David .

PHYSICAL REVIEW LETTERS, 2009, 102 (14)

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