Quasi-2D superconductivity and Fermi-liquid behavior in bulk CaC$_6$

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dc.creatorJobiliong, E.
dc.creatorZhou, H. D.
dc.creatorJanik, J. A.
dc.creatorJo, Y. -J.
dc.creatorBalicas, L.
dc.creatorBrooks, J. S.
dc.creatorWiebe, C. R.
dc.date2006-04-03
dc.date2006-04-29
dc.date.accessioned2026-07-07T07:05:14Z
dc.date.available2026-07-07T07:05:14Z
dc.descriptionThe intercalated graphite superconductor CaC6 with Tc ~ 11.5 K has been synthesized and characterized with magnetoresistance measurements. Above the transition, the resistivity follows a T^2 dependence up to 50 K, which suggests Fermi liquid behavior. Above 50 K, the data can be fit to the Bloch-Gruneisen model providing a Debye temperature of theta = 263 K. By using McMillan formula, we estimate the electron-phonon coupling constant of lambda = 0.85 which places this material in the intermediate-coupling regime. The upper critical field is determined parallel and perpendicular to the superconducting planes, and the dependence of the upper critical field as a function of angle suggests that this is a quasi-2D superconductivity. All of these measurements are consistent with BCS-like superconductivity.
dc.description4 pages and 4 pictures
dc.identifierhttps://arxiv.org/abs/cond-mat/0604062
dc.identifierhttp://arxiv.org/abs/cond-mat/0604062
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109599
dc.subjectSuperconductivity
dc.titleQuasi-2D superconductivity and Fermi-liquid behavior in bulk CaC$_6$
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