| ID | 34224 |
| FullText URL | |
| Author |
Ishizaka, K.
Eguchi, R.
Tsuda, S.
Yokota, T.
Chainani, A.
Kiss, T.
Shimojima, T.
Togashi, T.
Watanabe, S.
Chen, C. T.
Zhang, C. Q.
Takano, Y.
Nagao, M.
Sakuguchi, I.
Takenouchi, T.
Shin, S.
|
| Abstract | <p>We investigate the temperature (T)-dependent low-energy electronic structure of a boron-doped diamond thin film using ultrahigh resolution laser-excited photoemission spectroscopy. We observe a clear shift of the leading edge below T=11 K, indicative of a superconducting gap opening (Delta~0.78 meV at T=4.5 K). The gap feature is significantly broad and a well-defined quasiparticle peak is lacking even at the lowest temperature of measurement (=4.5 K). We discuss our results in terms of disorder effects on the normal state transport and superconductivity in this system.</p> |
| Note | Digital Object Identifier: 10.1103/PhysRevLett.98.047003
Published with permission from the copyright holder. This is the institute's copy, as published in Physical Review Letters, 23 January 2007, 98, 047003, Pages 1-4. Publisher URL:http://dx.doi.org/10.1103/PhysRevLett.98.047003 Direct access to Thomson Web of Science record PACS: 74.62.Dh, 73.61.Cw, 74.90.+n, 79.60.-i Copyright © 2007 American Physical Society. All rights reserved. |
| Published Date | 2007-1
|
| Publication Title |
Physical Review Letters
|
| Start Page | 1
|
| End Page | 4
|
| Content Type |
Journal Article
|
| language |
English
|
| Refereed |
True
|
| DOI | |
| Submission Path | light_and_optics/2
|
