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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 | 2011/08 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Electrochemical synthesis and superconducting phase diagram of CuxBi2Se3 |
| 執筆形態 | その他 |
| 掲載誌名 | PHYSICAL REVIEW B |
| 掲載区分 | 国外 |
| 出版社・発行元 | AMER PHYSICAL SOC |
| 巻・号・頁 | 84(5) |
| 著者・共著者 | M. Kriener,Kouji Segawa,Zhi Ren,Satoshi Sasaki,Shohei Wada,Susumu Kuwabata,Yoichi Ando |
| 概要 | The superconducting CuxBi2Se3 is an electron-doped topological insulator and is a prime candidate of the topological superconductor which still awaits discovery. The electrochemical intercalation technique for synthesizing CuxBi2Se3 offers good control of restricting Cu into the van der Waals gap and yields samples with shielding fractions of up to similar to 50%. We report essential details of this synthesis technique and present the established superconducting phase diagram of T-c vs x, along with a diagram of the shielding fraction vs x. Intriguingly, those diagrams suggest that there is a tendency to spontaneously form small islands of optimum superconductor in this material. |
| DOI | 10.1103/PhysRevB.84.054513 |
| ISSN | 1098-0121 |
| PermalinkURL | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80052355850&origin=inward |