Microwave losses of bulk CaC6
Autor: | P. Lagrange, Nicolas Emery, E. Di Gennaro, Claire Hérold, Antonello Andreone, G. Cifariello, Jean-François Marêché, G. Lamura |
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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: |
Superconductivity
Materials science Condensed matter physics Condensed Matter - Superconductivity FOS: Physical sciences Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Copper Electronic Optical and Magnetic Materials Superconductivity (cond-mat.supr-con) Surface conductivity Condensed Matter::Materials Science chemistry Highly oriented pyrolytic graphite Condensed Matter::Superconductivity Surface resistance Quasiparticle Graphite intercalated compound Pairing symmetry Graphite Electrical and Electronic Engineering Microwave Sheet resistance |
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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