Electron spin resonance (ESR) of Eu2+ in type-I clathrate Eu8Ga16Ge30

dc.creatorHolanda, LM
dc.creatorVargas, JM
dc.creatorRettori, C
dc.creatorPagliuso, PG
dc.creatorBittar, EM
dc.creatorAvila, MA
dc.creatorTakabatake, T
dc.date2009
dc.dateOCT 15
dc.date2014-11-13T12:35:47Z
dc.date2015-11-26T18:07:28Z
dc.date2014-11-13T12:35:47Z
dc.date2015-11-26T18:07:28Z
dc.date.accessioned2018-03-29T00:49:36Z
dc.date.available2018-03-29T00:49:36Z
dc.identifierPhysica B-condensed Matter. Elsevier Science Bv, v. 404, n. 19, n. 3300, n. 3303, 2009.
dc.identifier0921-4526
dc.identifierWOS:000271357300109
dc.identifier10.1016/j.physb.2009.07.094
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/64492
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/64492
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/64492
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1293599
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionWe report temperature dependent X-band (nu similar to 9.5 GHz) electron spin resonance (ESR) experiments in type-I clathrate Eu8Ga16Ge30. This system presents interesting thermoelectric properties in its paramagnetic state and orders ferromagnetically below T-C = 35 K Although the Eu2+ ions sits on two inequivalent sites in the type-I clathrate structure, we found in the paramagnetic state a single Dysonian Eu2+ ESR line with a nearly temperature independent g similar to 2 is observed, and its linewidth follows a Korringa-like behavior as a function of temperature. The microscopic details of the exchange coupling between the Eu2+ local moments and the conduction-electrons (c-e) in this compound are investigated through the obtained Korringa rate (Delta H/Delta T similar to 1 (1) Oe/K) and g-shift (Delta g similar to 0.01(1)) from ESR experiments combined with the magnetic susceptibility and specific heat data. (c) 2009 Elsevier B.V. All rights reserved.
dc.description404
dc.description19
dc.description3300
dc.description3303
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFAPESP [06/50511-8, 06/60387-2]
dc.descriptionCNPq [305161/2006-7]
dc.descriptionCAPES [065/2007]
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationPhysica B-condensed Matter
dc.relationPhysica B
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectClathrate
dc.subjectESR
dc.subjectKorringa relaxation
dc.subjectDensity of states
dc.subjectIntermetallic Compounds
dc.subjectRaman-scattering
dc.subjectMetals
dc.subjectGd3+
dc.subjectGe
dc.subjectRelaxation
dc.subjectAbsorption
dc.subjectCompound
dc.subjectAlloys
dc.subjectSr
dc.titleElectron spin resonance (ESR) of Eu2+ in type-I clathrate Eu8Ga16Ge30
dc.typeArtículos de revistas


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