Anisotropy induced vortex lattice rearrangement in CaKFe4As4

dc.contributor.author Khasanov, Rustem
dc.contributor.author Meier, William
dc.contributor.author Bud’ko, Sergey
dc.contributor.author Luetkens, Hubertus
dc.contributor.author Canfield, Paul
dc.contributor.author Amato, Alex
dc.contributor.department Ames Laboratory
dc.contributor.department Physics and Astronomy
dc.date 2019-08-19T18:14:50.000
dc.date.accessioned 2020-06-29T23:22:10Z
dc.date.available 2020-06-29T23:22:10Z
dc.date.issued 2019-04-19
dc.description.abstract <p>The magnetic penetration depth anisotropy gamma(lambda) = lambda(c)/lambda(ab) (lambda(ab) and lambda(c) are the in-plane and the out-of-plane components of the magnetic penetration depth) in a CaKFe4As4 single crystal sample (the critical temperature T-c similar or equal to 35 K) was studied by means of muon-spin rotation (mu SR). gamma(lambda) is almost temperature independent for T less than or similar to 20 K (gamma(lambda) similar or equal to 1.9) and it reaches similar or equal to 3.0 by approaching T-c. The change of gamma(lambda) induces the corresponding rearrangement of the flux line lattice (FLL), which is clearly detected via enhanced distortions of the FLL mu SR response. A comparison of gamma(lambda) with the anisotropy of the upper critical field (gamma H-c2) studied by Meier et al. [Phys. Rev. B 94, 064501 (2016)] reveals that gamma(lambda) is systematically higher than gamma H(c2 )at low temperatures and approaches gamma H-c2 for T -> T-c. The anisotropic properties of lambda are explained by the multigap nature of superconductivity in CaKFe4As4 and are caused by anisotropic contributions of various bands to the in-plane and the out-of-plane components of the superfluid density.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_manuscripts/311/
dc.identifier.articleid 1324
dc.identifier.contextkey 14809070
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/311
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7247
dc.language.iso en
dc.relation.ispartofseries IS-J 9888
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_manuscripts/311/IS_J_9888.pdf|||Fri Jan 14 23:31:28 UTC 2022
dc.source.uri 10.1103/PhysRevB.99.140507
dc.subject.disciplines Condensed Matter Physics
dc.title Anisotropy induced vortex lattice rearrangement in CaKFe4As4
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication c5a8128b-7d98-4b8f-92d7-b1385e345713
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
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