Nuclear magnetic relaxation for the spin-degenerate Anderson model

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade de São Paulo (USP)
dc.creatorWhitaker, M. A. [UNESP]
dc.creatorOliveira, L. N.
dc.date2014-05-27T11:17:25Z
dc.date2014-05-27T11:17:25Z
dc.date1991-05-01
dc.date.accessioned2023-09-12T07:21:54Z
dc.date.available2023-09-12T07:21:54Z
dc.identifierhttp://dx.doi.org/10.1016/0921-4526(91)90492-W
dc.identifierPhysica B: Physics of Condensed Matter, v. 171, n. 1-4, p. 69-73, 1991.
dc.identifier0921-4526
dc.identifierhttp://hdl.handle.net/11449/130704
dc.identifier10.1016/0921-4526(91)90492-W
dc.identifierWOS:A1991FU47000010
dc.identifier2-s2.0-0026155011
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8780008
dc.descriptionA renormalization-group calculation of the temperature-dependent nuclear spin relaxation rate for a magnetic impurity in a metallic host is reported. The calculation follows a simplified procedure, which produces accurate rates in the low-temperature Fermi-liquid regime, although yielding only qualitatively reliable results at higher temperatures. In all cases considered, as the temperature T diminishes, the rates peak before decaying linearly to zero in the Fermi-liquid range. For T → 0, the results agree very well with Shiba's expression relating the low-temperature coefficient of the relaxation rate to the squared zero-temperature susceptibility. In the Kondo limit, the enhanced susceptibility associated with the Kondo resonance produces a very sharp peak in the relaxation rate near the Kondo temperature. © 1991.
dc.descriptionFaculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista, 12500 Guaratinguetá, SP
dc.descriptionInsituto de Física e Química de São Carlos Universidade de São Paulo, 13650 São Carlos, SP
dc.descriptionFaculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista, 12500 Guaratinguetá, SP
dc.format69-73
dc.languageeng
dc.publisherElsevier B.V.
dc.relationPhysica B: Physics of Condensed Matter
dc.relation1.453
dc.relation0,417
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectMetals and Alloys
dc.subjectNuclear Magnetic Resonance
dc.subjectRelaxation Processes
dc.subjectAnderson Model
dc.subjectKondo Temperature
dc.subjectMagnetic Materials
dc.titleNuclear magnetic relaxation for the spin-degenerate Anderson model
dc.typeArtigo


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