Hexagonally Deformed Fermi Surface of the 3D Topological Insulator Bi_2Se_3
Physical Review Letters 105 巻 7 号
076802-1-076802-4 頁
2010-08-10 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Hexagonally Deformed Fermi Surface of the 3D Topological Insulator Bi_2Se_3
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| 作成者 |
Kuroda Kenta
Arita Masashi
Ye Mao
Jiang Jian
Krasovskii E. E
Chulkov E. V
Ueda Yoshifumi
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| 収録物名 |
Physical Review Letters
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| 巻 | 105 |
| 号 | 7 |
| 開始ページ | 076802-1 |
| 終了ページ | 076802-4 |
| 抄録 |
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分類 |
物理学 [ 420 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
The American Physical Society
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| 発行日 | 2010-08-10 |
| 権利情報 |
Copyright (c) 2010 The American Physical Society
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[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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