| ID | 34144 |
| フルテキストURL | |
| 著者 |
Tsuda, S
University of Tokyo
Yokoya, T
University of Tokyo
Kiss, T
Institute of Physical and Chemical Research
Shimojima, T
University of Tokyo
Shin, S
University of Tokyo
Togashi, T
Institute of Physical and Chemical Research
Watanabe, S
University of Tokyo
Zhang, C
Beijing Center for Crystal R&D
Chen, C T
Beijing Center for Crystal R&D
Lee, S
International Superconductivity Technology Center
Uchiyama, H
International Superconductivity Technology Center
Tajima, S
International Superconductivity Technology Center
Nakai, N
Kyoto University
Machida, K
Okayama University
|
| 抄録 | "Sub-meV" resolution photoemission spectroscopy was used to study carbon-substitution dependence of the multiple superconducting gap of Mg(B1-xCx)(2). Two features corresponding to sigma and pi gaps are clearly observed in the raw spectra up to carbon concentration x=0.075. The observed x dependence of the two gaps shows a qualitatively different behavior: the sigma gap is proportional to T-c while the pi gap shows negligible change. Doping as well as temperature dependence can be explained within the two-band mean-field theory. Implications from the present study are discussed. |
| キーワード | magnesium diboride
single-crystals
origin
boron
|
| 備考 | Digital Object Identifer:10.1103/PhysRevB.72.064527
Published with permission from the copyright holder. This is the institute's copy, as published in Physical Review B, August 2005, Volume 72, Issue 6, Pages 5. Publisher URL:http://dx.doi.org/10.1103/PhysRevB.72.064527 Direct access to Thomson Web of Science record Copyright © 2005 The American Physical Society. All rights reserved. |
| 発行日 | 2005-8
|
| 出版物タイトル |
Physical Review B
|
| 巻 | 72巻
|
| 号 | 6号
|
| 資料タイプ |
学術雑誌論文
|
| 言語 |
英語
|
| 査読 |
有り
|
| DOI | |
| Web of Science KeyUT | |
| Submission Path | physics_general/21
|
