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EPR linewidth of local magnetic moments diluted in Ce intermediate-valence compounds

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dc.contributor.authorVenegas, Pablo Antonio [UNESP]
dc.contributor.authorBarberis, Gaston E.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-27T11:17:30Z
dc.date.available2014-05-27T11:17:30Z
dc.date.issued1992-12-01
dc.description.abstractAnomalous thermal behavior on the EPR linewidths has been observed for Gd impurities diluted in CexA1-xBn (A=La,Y, B=Ir,Os,Rh,Pd) intermediate-valence compounds. In this work we show that the exchange interaction between the local magnetic moments and the intermediate-valence host ions has an important contribution to the relaxation rates of the local moments. We calculated the relaxation, using the Redfield formalism and the ideas contained in the interconfigurational fluctuation model of Hirst. We show that the exchange interaction contribution has an exponential dependence on the excitation energy of the intermediate-valence ions. © 1992 The American Physical Society.en
dc.description.affiliationDepartamento de Física Faculdade de Ciências UNESP, R. Engenheiro Luis Coube s/n, Bauru, São Paulo
dc.description.affiliationInstituto de Física Universidade Estadual de Campinas (UNICAMP), 13081 Campinas, São Paulo
dc.description.affiliationUnespDepartamento de Física Faculdade de Ciências UNESP, R. Engenheiro Luis Coube s/n, Bauru, São Paulo
dc.format.extent911-914
dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.46.911
dc.identifier.citationPhysical Review B, v. 46, n. 2, p. 911-914, 1992.
dc.identifier.doi10.1103/PhysRevB.46.911
dc.identifier.file2-s2.0-35949006265.pdf
dc.identifier.issn0163-1829
dc.identifier.lattes823643293913690
dc.identifier.orcid0000-0002-5819-0957
dc.identifier.scopus2-s2.0-35949006265
dc.identifier.urihttp://hdl.handle.net/11449/64307
dc.language.isoeng
dc.relation.ispartofPhysical Review B
dc.relation.ispartofsjr1,176
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleEPR linewidth of local magnetic moments diluted in Ce intermediate-valence compoundsen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dspace.entity.typePublication
unesp.author.lattes823643293913690[1]
unesp.author.orcid0000-0002-5819-0957[1]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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