Hexagonally Deformed Fermi Surface of the 3D Topological Insulator Bi_2Se_3
Physical Review Letters Volume 105 Issue 7
Page 076802-1-076802-4
published_at 2010-08-10
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| File | |
| Title ( eng ) |
Hexagonally Deformed Fermi Surface of the 3D Topological Insulator Bi_2Se_3
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| Creator |
Kuroda Kenta
Arita Masashi
Ye Mao
Jiang Jian
Krasovskii E. E
Chulkov E. V
Ueda Yoshifumi
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| Source Title |
Physical Review Letters
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| Volume | 105 |
| Issue | 7 |
| Start Page | 076802-1 |
| End Page | 076802-4 |
| 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.
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| NDC |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
The American Physical Society
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| Date of Issued | 2010-08-10 |
| Rights |
Copyright (c) 2010 The American Physical Society
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.105.076802
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.105.076802
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