Microwave losses of bulk CaC6

Autor: P. Lagrange, Nicolas Emery, E. Di Gennaro, Claire Hérold, Antonello Andreone, G. Cifariello, Jean-François Marêché, G. Lamura
Přispěvatelé: G., Cifariello, DI GENNARO, Emiliano, G., Lamura, Andreone, Antonello, N., Emery, C., Herold, J. F., Mareche, P., Lagrange
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Zdroj: Physica. C, Superconductivity
460 (2007): 716–717. doi:10.1016/j.physc.2007.03.426
info:cnr-pdr/source/autori:Cifariello G.; Di Gennaro E.; Lamura G.; Andreone A.; Emery N.; Herold C.; Mareche J.F.; Lagrange P./titolo:Microwave losses of bulk CaC6/doi:10.1016%2Fj.physc.2007.03.426/rivista:Physica. C, Superconductivity (Print)/anno:2007/pagina_da:716/pagina_a:717/intervallo_pagine:716–717/volume:460
DOI: 10.1016/j.physc.2007.03.426
Popis: We report a study of the temperature dependence of the surface resistance RS in the graphite intercalated compound (GIC) CaC6, where superconductivity at 11.5 K was recently discovered. Experiments are carried out using a copper dielectrically loaded cavity operating at 7 GHz in a "hot finger" configuration. Bulk CaC6 samples have been synthesized from highly oriented pyrolytic graphite. Microwave data allows to extract unique information on the quasiparticle density and on the nature of pairing in superconductors. The analysis of RS(T) confirms our recent experimental findings that CaC6 behaves as a weakly-coupled, fully gapped, superconductor.
2 pages, submitted to Physica C (M2S-HTSC 2006 Proceedings)
Databáze: OpenAIRE
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