完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Lue, C. S. | en_US |
dc.contributor.author | Su, T. H. | en_US |
dc.contributor.author | Liu, H. F. | en_US |
dc.contributor.author | Young, Ben-Li | en_US |
dc.date.accessioned | 2019-04-03T06:36:08Z | - |
dc.date.available | 2019-04-03T06:36:08Z | - |
dc.date.issued | 2011-08-25 | en_US |
dc.identifier.issn | 1098-0121 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevB.84.052509 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/16154 | - |
dc.description.abstract | We report a Nb-93 nuclear magnetic resonance (NMR) study on the noncentrosymmetric superconductor Re24Nb5. Below the superconducting temperature T-c(H), the spin susceptibility probed by the Nb-93 NMR Knight shift gradually decreases with lowering temperature, accompanied by the broadening of the resonance spectrum. Such behavior is commonly observed in the BCS-type superconductors. The Nb-93 NMR spin-lattice relaxation rate (1/T-1) shows a well-defined coherence peak just below T-c(H), followed by a marked decrease with further decreasing temperature. Moreover, the 1/T-1 data in the superconducting state were found to obey a single exponential expression, yielding a nodeless gap Delta/kB = 10.3 K. This value gives the ratio of 2 Delta/kBT(c)(H) = 3.55, that is almost identical with the value of 3.5 predicted from BCS theory. On these bases, we conclude that the noncentrosymmetric Re24Nb5 compound can be characterized as a weakly coupled BCS-type superconductor. | en_US |
dc.language.iso | en_US | en_US |
dc.title | Evidence for s-wave superconductivity in noncentrosymmetric Re24Nb5 from Nb-93 NMR measurements | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1103/PhysRevB.84.052509 | en_US |
dc.identifier.journal | PHYSICAL REVIEW B | en_US |
dc.citation.volume | 84 | en_US |
dc.citation.issue | 5 | en_US |
dc.citation.spage | 0 | en_US |
dc.citation.epage | 0 | en_US |
dc.contributor.department | 電子物理學系 | zh_TW |
dc.contributor.department | Department of Electrophysics | en_US |
dc.identifier.wosnumber | WOS:000294264900001 | en_US |
dc.citation.woscount | 22 | en_US |
顯示於類別: | 期刊論文 |