Quasiparticle interference on the surface of Bi2Se3 induced by cobalt adatom in the absence of ferromagnetic ordering
Physical Review B 85 巻 20 号
205317- 頁
2012 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Quasiparticle interference on the surface of Bi2Se3 induced by cobalt adatom in the absence of ferromagnetic ordering
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| 作成者 |
Ye Mao
Eremeev S. V.
Kuroda Kenta
Krasovskii E. E.
Chulkov E. V.
Takeda Yukiharu
Saito Yuji
Okamoto Kazuaki
Zhu S. Y.
Arita Masashi
Ueda Yoshifumi
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| 収録物名 |
Physical Review B
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| 巻 | 85 |
| 号 | 20 |
| 開始ページ | 205317 |
| 抄録 |
Quasiparticle interference induced by cobalt adatoms on the surface of the topological insulator Bi2Se3 is studied by scanning tunneling microscopy, angle-resolved photoemission spectroscopy, and x-ray magnetic circular dichroism. It is found that Co atoms are selectively adsorbed on top of Se sites and act as strong scatterers at the surface, generating anisotropic standing waves. A long-range magnetic order is found to be absent, and the surface state Dirac cone remains gapless. The anisotropy of the standing wave is ascribed to the heavily warped iso-energy contour of unoccupied states, where the scattering is allowed due to a nonzero out-of-plane spin.
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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 |
American Physical Society
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| 発行日 | 2012 |
| 権利情報 |
(c) 2012 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] 1098-0121
[DOI] 10.1103/PhysRevB.85.205317
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.85.205317
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