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Literature DB >> 20868066

Hexagonally deformed Fermi surface of the 3D topological insulator Bi2Se3.

K Kuroda¹, M Arita, K Miyamoto, M Ye, J Jiang, A Kimura, E E Krasovskii, E V Chulkov, H Iwasawa, T Okuda, K Shimada, Y Ueda, H Namatame, M Taniguchi.

Abstract

A hexagonal deformation of the Fermi surface of Bi2Se3 has been for the first time observed by angle-resolved photoemission spectroscopy. This is in contrast to the general belief that Bi2Se3 possesses an ideal Dirac cone. The hexagonal shape is found to disappear near the Dirac node, which would protect the surface state electrons from backscattering. It is also demonstrated that the Fermi energy of naturally electron-doped Bi2Se3 can be tuned by 1% Mg doping in order to realize the quantum topological transport.

Entities: Chemical

Year: 2010 PMID： 20868066 DOI： 10.1103/PhysRevLett.105.076802

Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161

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Cited

18 in total

1. Atom-specific spin mapping and buried topological states in a homologous series of topological insulators.

Authors: Sergey V Eremeev; Gabriel Landolt; Tatiana V Menshchikova; Bartosz Slomski; Yury M Koroteev; Ziya S Aliev; Mahammad B Babanly; Jürgen Henk; Arthur Ernst; Luc Patthey; Andreas Eich; Alexander Ako Khajetoorians; Julian Hagemeister; Oswald Pietzsch; Jens Wiebe; Roland Wiesendanger; Pedro M Echenique; Stepan S Tsirkin; Imamaddin R Amiraslanov; J Hugo Dil; Evgueni V Chulkov
Journal: Nat Commun Date: 2012-01-24 Impact factor: 14.919

2. Tunable Dirac cone in the topological insulator Bi(2-x)Sb(x)Te(3-y)Se(y).

Authors: T Arakane; T Sato; S Souma; K Kosaka; K Nakayama; M Komatsu; T Takahashi; Zhi Ren; Kouji Segawa; Yoichi Ando
Journal: Nat Commun Date: 2012-01-24 Impact factor: 14.919

3. Robustness of topological order and formation of quantum well states in topological insulators exposed to ambient environment.

Authors: Chaoyu Chen; Shaolong He; Hongming Weng; Wentao Zhang; Lin Zhao; Haiyun Liu; Xiaowen Jia; Daixiang Mou; Shanyu Liu; Junfeng He; Yingying Peng; Ya Feng; Zhuojin Xie; Guodong Liu; Xiaoli Dong; Jun Zhang; Xiaoyang Wang; Qinjun Peng; Zhimin Wang; Shenjin Zhang; Feng Yang; Chuangtian Chen; Zuyan Xu; Xi Dai; Zhong Fang; X J Zhou
Journal: Proc Natl Acad Sci U S A Date: 2012-02-21 Impact factor: 11.205

Hexagonally deformed Fermi surface of the 3D topological insulator Bi2Se3.

1. Atom-specific spin mapping and buried topological states in a homologous series of topological insulators.

2. Tunable Dirac cone in the topological insulator Bi(2-x)Sb(x)Te(3-y)Se(y).

3. Robustness of topological order and formation of quantum well states in topological insulators exposed to ambient environment.

4. Symmetry protected Josephson supercurrents in three-dimensional topological insulators.

5. Electrical detection of charge-current-induced spin polarization due to spin-momentum locking in Bi2Se3.

6. Coexistence of the topological state and a two-dimensional electron gas on the surface of Bi(2)Se(3).

7. A search model for topological insulators with high-throughput robustness descriptors.

8. Ultrafast helicity control of surface currents in topological insulators with near-unity fidelity.

9. High-mobility Bi2Se3 nanoplates manifesting quantum oscillations of surface states in the sidewalls.

10. Thickness-dependent transport channels in topological insulator Bi2Se3 thin films grown by magnetron sputtering.