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セガワ コウジ
SEGAWA KOJI
瀬川 耕司 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2014/11 |
| 形態種別 | 研究論文 |
| 標題 | Spin-Electricity Conversion Induced by Spin Injection into Topological Insulators |
| 執筆形態 | その他 |
| 掲載誌名 | PHYSICAL REVIEW LETTERS |
| 出版社・発行元 | AMER PHYSICAL SOC |
| 巻・号・頁 | 113(19) |
| 著者・共著者 | Y. Shiomi,K. Nomura,Y. Kajiwara,K. Eto,M. Novak,Kouji Segawa,Yoichi Ando,E. Saitoh |
| 概要 | We report successful spin injection into the surface states of topological insulators by using a spin pumping technique. By measuring the voltage that shows up across the samples as a result of spin pumping, we demonstrate that a spin-electricity conversion effect takes place in the surface states of bulk-insulating topological insulators Bi1.5Sb0.5Te1.7Se1.3 and Sn-doped Bi2Te2Se. In this process, the injected spins are converted into a charge current along the Hall direction due to the spin-momentum locking on the surface state. |
| DOI | 10.1103/PhysRevLett.113.196601 |
| ISSN | 0031-9007/1079-7114 |
| PermalinkURL | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84910069429&origin=inward |