Hexagonally Deformed Fermi Surface of the 3D Topological Insulator Bi_2Se_3
Use this link to cite this item : http://ir.lib.hiroshima-u.ac.jp/00030708
| ID | 30708 |
| file | |
| creator |
Kuroda, Kenta
Arita, Masashi
Ye, Mao
Jiang, Jian
Krasovskii, E. E
Chulkov, E. V
Ueda, Yoshifumi
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| NDC |
Physics
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| 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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| journal title |
Physical Review Letters
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| volume | Volume 105
|
| issue | Issue 7
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| start page | 076802-1
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| end page | 076802-4
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| date of issued | 2010-08-10
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| publisher | The American Physical Society
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| issn | 0031-9007
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| ncid | |
| publisher doi | |
| language |
eng
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| nii type |
Journal Article
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| HU type |
Journal Articles
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| DCMI type | text
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| format | application/pdf
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| text version | publisher
|
| rights | Copyright (c) 2010 The American Physical Society
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| relation url | |
| department |
Graduate School of Science
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