Muon spin relaxation studies of magnetic order and superfluid density in antiferromagnetic NdOFeAs, BaFe2As2 and superconducting (Ba,K)Fe2As2

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dc.creatorAczel, A. A.
dc.creatorBaggio-Saitovitch, E.
dc.creatorBudko, S. L.
dc.creatorCanfield, P. C.
dc.creatorCarlo, J. P.
dc.creatorChen, G. F.
dc.creatorDai, Pengcheng
dc.creatorGoko, T.
dc.creatorHu, W. Z.
dc.creatorLuke, G. M.
dc.creatorLuo, J. L.
dc.creatorNi, N.
dc.creatorSanchez-Candela, D. R.
dc.creatorTafti, F. F.
dc.creatorWang, N. L.
dc.creatorWilliams, T. J.
dc.creatorYu, W.
dc.creatorUemura, Y. J.
dc.date2008-07-07
dc.date.accessioned2026-07-07T12:49:09Z
dc.date.available2026-07-07T12:49:09Z
dc.descriptionZero-field (ZF) muon spin relaxation ($μ$SR) measurements have revealed static commensurate magnetic order of Fe moments in NdOFeAs below $T_{N} \sim 135$ K, with the ordered moment size nearly equal to that in LaOFeAs, and confirmed similar behavior in BaFe$_{2}$As$_{2}$. In single crystals of superconducting (Ba$_{0.55}$K$_{0.45}$)Fe$_{2}$As$_{2}$, $μ$SR spectra indicate static magnetism with incommensurate or short-ranged spin structure in $\sim$ 70 % of volume below $T_{N} \sim$ 80 K, coexisting with remaining volume which exhibits superfluid-response consistent with nodeless gap below $T_{c}\sim 30$ K.
dc.description4 pages 4 figures
dc.identifierhttps://arxiv.org/abs/0807.1044
dc.identifierhttp://arxiv.org/abs/0807.1044
dc.identifierPhys. Rev. B 78, 214503 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.214503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222306
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleMuon spin relaxation studies of magnetic order and superfluid density in antiferromagnetic NdOFeAs, BaFe2As2 and superconducting (Ba,K)Fe2As2
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