Anisotropic superconductivity in graphite intercalation compound YbC6
| dc.creator | Kawai, N. F. | |
| dc.creator | Fukuyama, Hiroshi | |
| dc.date | 2008-07-17 | |
| dc.date | 2008-11-18 | |
| dc.date.accessioned | 2026-07-07T10:18:35Z | |
| dc.date.available | 2026-07-07T10:18:35Z | |
| dc.description | We report anisotropy of the upper critical field (Bc2) of an intercalated graphite superconductor YbC6 (Tc = 6.5 K) determined from angular dependent magnetoresistance measurements. Though the perpendicular coherence length is much longer than interlayer spacing, measured angular dependences of Bc2 are well fitted by the Lawrence-Doniach model or the Tinkham model, which are known to be applicable to quasi two-dimensional materials or thin films, rather than the effective mass model. This observation is similar to the measurements for the other intercalated graphite superconductor, CaC6, by Jobiliong et al. [E. Jobiliong, H.D. Zhou, J.A. Janik, Y.-J. Jo, L. Balicas, J.S. Brooks, C.R. Wiebe, Phys. Rev. B 76 (2007) 31 052511]. A possible explanation for the unexpected applicability of these models is that our YbC6 samples are synthesized as thin flakes in the host graphite. | |
| dc.description | 15 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/0807.2706 | |
| dc.identifier | http://arxiv.org/abs/0807.2706 | |
| dc.identifier | Physica C 468, 2403 (2008) | |
| dc.identifier | doi:10.1016/j.physc.2008.09.009 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/174234 | |
| dc.subject | Superconductivity | |
| dc.title | Anisotropic superconductivity in graphite intercalation compound YbC6 | |
| dc.type | text |