Quantum corrals and quantum mirages on the surface of a topological insulator

被引：15

作者：

Fu, Zhen-Guo ^{[1
,2
]}

Zhang, Ping ^{[2
]}

Wang, Zhigang ^{[2
]}

Li, Shu-Shen ^{[1
]}

机构：

[1] Chinese Acad Sci, SKLSM, Inst Semicond, Beijing 100083, Peoples R China

[2] Inst Appl Phys & Computat Math, LCP, Beijing 100088, Peoples R China

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 23期

关键词：

SINGLE DIRAC CONE; SCATTERING; BI2SE3; STATES; BI2TE3; WELLS;

D O I：

10.1103/PhysRevB.84.235438

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study quantum corrals on the surface of a topological insulator (TI). Different resonance states induced by nonmagnetic (NM), antiferromagnetic (AFM), and ferromagnetic (FM) corrals are found. Intriguingly, the spin is clearly energy resolved in an FM corral, which can be effectively used to operate surface carrier spins of TI. We also show that an observable quantum mirage of a magnetic impurity can be projected from the occupied into the empty focus of a FM elliptic corral, while in NM and AFM corrals the mirage signal becomes negligibly weak. In addition, the modulation of the interaction between two magnetic impurities in the quantum corrals is demonstrated. These prominent effects may be measured by spin-polarized scanning tunneling microscopy experiments.

引用

页数：5

共 37 条

[1] Many-body theory of the quantum mirage [J].

Aligia, AA .

PHYSICAL REVIEW B, 2001, 64 (12)

[2]

Alpichshev Z., 2011, ARXIV11080022V1

[3] 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)

[4] Impurity-induced states in conventional and unconventional superconductors [J].

Balatsky, A. V. ;

Vekhter, I. ;

Zhu, Jian-Xin .

REVIEWS OF MODERN PHYSICS, 2006, 78 (02) :373-433

[5] Quantum Corral Resonance Widths: Lossy Scattering as Acoustics [J].

Barr, Matthew C. ;

Zaletel, Michael P. ;

Heller, Eric J. .

NANO LETTERS, 2010, 10 (09) :3253-3260

[6] Quantum spin Hall effect and topological phase transition in HgTe quantum wells [J].

Bernevig, B. Andrei ;

Hughes, Taylor L. ;

Zhang, Shou-Cheng .

SCIENCE, 2006, 314 (5806) :1757-1761

[7] Impurity-induced states on the surface of three-dimensional topological insulators [J].

Biswas, Rudro R. ;

Balatsky, A. V. .

PHYSICAL REVIEW B, 2010, 81 (23)

[8] Magnetic Doping and Kondo Effect in Bi2Se3 Nanoribbons [J].

Cha, Judy J. ;

Williams, James R. ;

Kong, Desheng ;

Meister, Stefan ;

Peng, Hailin ;

Bestwick, Andrew J. ;

Gallagher, Patrick ;

Goldhaber-Gordon, David ;

Cui, Yi .

NANO LETTERS, 2010, 10 (03) :1076-1081

[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]

Datta S., 1990, APPL PHYS LETT, V56, P695

← 1 2 3 4 →