Ferromagnetism and superconductivity in CeFeAs 1-xP xO (0≤x≤40)

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dc.contributor.authorJesche, A.
dc.contributor.authorFörster, T.
dc.contributor.authorSpehling, J.
dc.contributor.authorNicklas, M.
dc.contributor.authorDe Souza, M. [UNESP]
dc.contributor.authorGumeniuk, R.
dc.contributor.authorLuetkens, H.
dc.contributor.authorGoltz, T.
dc.contributor.authorKrellner, C.
dc.contributor.authorLang, M.
dc.contributor.authorSichelschmidt, J.
dc.contributor.authorKlauss, H. H.
dc.contributor.authorGeibel, C.
dc.contributor.institutionMax Planck Institute for Chemical Physics of Solids
dc.contributor.institutionTU Dresden
dc.contributor.institutionGoethe-Universität Frankfurt
dc.contributor.institutionPaul Scherrer Institute
dc.contributor.institutionIowa State University
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:26:52Z
dc.date.available2014-05-27T11:26:52Z
dc.date.issued2012-07-05
dc.description.abstractWe report on superconductivity in CeFeAs 1-xP xO and the possible coexistence with Ce ferromagnetism (FM) in a small homogeneity range around x=30% with ordering temperatures of T SC≅T C≅4 K. The antiferromagnetic (AFM) ordering temperature of Fe at this critical concentration is suppressed to TNFe≈40 K and does not shift to lower temperatures with a further increase of the P concentration. Therefore, a quantum-critical-point scenario with TNFe→0 K which is widely discussed for the iron based superconductors can be excluded for this alloy series. Surprisingly, thermal expansion and x-ray powder diffraction indicate the absence of an orthorhombic distortion despite clear evidence for short-range AFM Fe ordering from muon-spin-rotation measurements. Furthermore, we discovered the formation of a sharp electron spin resonance signal unambiguously connected with the emergence of FM ordering. © 2012 American Physical Society.en
dc.description.affiliationMax Planck Institute for Chemical Physics of Solids, D-01187 Dresden
dc.description.affiliationIFP TU Dresden, D-01069 Dresden
dc.description.affiliationPhysikalisches Institut Goethe-Universität Frankfurt, D-60438 Frankfurt(M)
dc.description.affiliationLaboratory for Muon Spin Spectroscopy Paul Scherrer Institute, CH-5232 Villigen PSI
dc.description.affiliationAmes Laboratory Iowa State University, Ames, IA 50011
dc.description.affiliationDepartamento de Física Universidade Estadual Paulista, Rio Claro (SP)
dc.description.affiliationUnespDepartamento de Física Universidade Estadual Paulista, Rio Claro (SP)
dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.86.020501
dc.identifier.citationPhysical Review B - Condensed Matter and Materials Physics, v. 86, n. 2, 2012.
dc.identifier.doi10.1103/PhysRevB.86.020501
dc.identifier.file2-s2.0-84863714526.pdf
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.scopus2-s2.0-84863714526
dc.identifier.urihttp://hdl.handle.net/11449/73430
dc.language.isoeng
dc.relation.ispartofPhysical Review B: Condensed Matter and Materials Physics
dc.relation.ispartofsjr1,604
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleFerromagnetism and superconductivity in CeFeAs 1-xP xO (0≤x≤40)en
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

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