Muon spin rotation study of the magnetic penetration depth in the intercalated graphite superconductor CaC6

dc.creatorDi Castro, D.
dc.creatorKanigel, A.
dc.creatorMaisuradze, A.
dc.creatorKeren, A.
dc.creatorPostorino, P.
dc.creatorRosenmann, D.
dc.creatorWelp, U.
dc.creatorKarapetrov, G.
dc.creatorClaus, H.
dc.creatorHinks, D. G.
dc.creatorAmato, A.
dc.creatorCampuzano, J. C.
dc.date2008-03-31
dc.date2010-07-04
dc.date.accessioned2022-11-24T14:29:44Z
dc.date.available2022-11-24T14:29:44Z
dc.descriptionWe report temperature- and magnetic field-dependent bulk muon spin rotation measurements in a c-axis oriented superconductor CaC6 in the mixed state. Using both a simple second moment analysis and the more precise analytical Ginzburg-Landau model, we obtained a field independent in-plane magnetic penetration depth {\lambda}ab (0) = 72(3) nm. The temperature dependencies of the normalized muon spin relaxation rate and of the normalized superfluid density result to be identical, and both are well represented by the clean limit BCS model with 2\Delta/kB Tc = 3.6(1), suggesting that CaC6 is a fully gapped BCS superconductor in the clean limit regime.
dc.descriptionComment: Accepted for publication in PRB
dc.identifierhttp://arxiv.org/abs/0803.4513
dc.identifierPhys. Rev. B 82, 014530 (2010)
dc.identifierdoi:10.1103/PhysRevB.82.014530
dc.identifier.urihttps://demo7.dspace.org/handle/10673/83486
dc.subjectCondensed Matter - Superconductivity
dc.subjectCondensed Matter - Strongly Correlated Electrons
dc.titleMuon spin rotation study of the magnetic penetration depth in the intercalated graphite superconductor CaC6
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