WEKO3
アイテム
Structural and superconducting transition in selenium at high pressure
http://hdl.handle.net/10112/2202
http://hdl.handle.net/10112/22024b04de6f-2345-453b-a0b7-4d65e3f1011f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KU-1100PRB-20010200-133.pdf (240.6 kB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-07-16 | |||||
| タイトル | ||||||
| タイトル | Structural and superconducting transition in selenium at high pressure | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Otani, Minoru
× Otani, Minoru× Suzuki, Naoshi |
|||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 24165 | |||||
| 姓名 | 大谷, 実 | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 24166 | |||||
| 姓名 | 鈴木, 直 | |||||
| 概要 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | First-principles calculations are performed for electronic structures of two high-pressure phases of solid selenium, β-Po, and bcc. Our calculation reproduces well the pressure-induced phase transition from β-Po to bcc observed in selenium. The calculated transition pressure is 30 GPa lower than the observed one, but the calculated pressure dependence of the lattice parameters agrees fairly well with the observations in a wide range of pressure. We estimate the superconducting transition temperature Tc of both the β-Po and the bcc phases by calculating the phonon dispersion and the electron-phonon interaction on the basis of density-functional perturbation theory. The calculated Tc shows a characteristic pressure dependence. In bcc Se, Tc increases considerably with decreasing pressure and its maximum may exceed 10 K. In β-Po Se, Tc depends sensitively on the lattice constants we have used. For the lattice constants estimated by calculation, the values of Tc is as high as that in bcc phase and decreases with increasing pressure. For the lattice constants determined by measurements, on the other hand, Tc is less pressure dependent and there is a large jump in Tc at the transition from β-Po to bcc. | |||||
| 書誌情報 |
PHYSICAL REVIEW B 巻 63, 号 10, p. 104516-1-104516-8, 発行日 2001-02-20 |
|||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 24699950 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 24699969 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevB.63.104516 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
