Interpretation of experimental results on Kondo systems with crystal field

cnea.localizacionCentro Atómico Bariloche
cnea.tipodocumentoARTÍCULO CIENTÍFICO
dc.contributor.authorRomero, M.A.
dc.contributor.authorAligia, A.A.
dc.contributor.authorSereni, J.G.
dc.contributor.authorNieva, G.
dc.contributor.cneaproductorGerencia Física. Departamento Materia Condensada. División Bajas Temperaturas
dc.date.accessioned2024-05-07T13:37:09Z
dc.date.available2024-05-07T13:37:09Z
dc.date.issued2014-00-00
dc.description.abstractWe present a simple approach to calculate the thermodynamic properties of single Kondo impurities including orbital degeneracy and crystal field effects (CFE) by extending a previous proposal by Schotte and Schotte (1975 Phys. Lett. 55A 38). Comparison with exact solutions for the specific heat of a quartet ground state split into two doublets shows deviations below 10% in the absence of CFE and a quantitative agreement for moderate or large CFE. As an application, we fit the measured specific heat of the compounds CeCu2Ge2, CePd3Si0.3, CePdAl, CePt, Yb2Pd2Sn and YbCo2Zn20. The agreement between theory and experiment is very good or excellent depending on the compound, except at very low temperatures due to the presence of magnetic correlations (not accounted for in the model).
dc.description.institutionalaffiliationFil.: Aligia, A.A. Comisión Nacional de Energía Atómica. Instituto Balseiro; Argentina
dc.description.institutionalaffiliationFil.: Sereni, J.G. Comisión Nacional de Energía Atómica. Instituto Balseiro; Argentina
dc.description.institutionalaffiliationFil.: Nieva, G. Comisión Nacional de Energía Atómica. Instituto Balseiro; Argentina
dc.description.institutionalaffiliationexternalFil.: Romero, M.A. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.recordsetsectionProducción científica
dc.description.recordsetseriesContribución a revistas científicas
dc.format.extent9 p.
dc.identifier.arxivhttps://arxiv.org/abs/1308.3256
dc.identifier.citationM A Romero et al 2014 J. Phys.: Condens. Matter 26 025602
dc.identifier.doihttp://dx.doi.org/10.1088/0953-8984/26/2/025602
dc.identifier.issn1361-648X
dc.identifier.urihttps://nuclea.cnea.gob.ar/handle/20.500.12553/5383
dc.language.ISO639-3eng
dc.publisherIOP Publishing
dc.relation.ispartofv. 26, n. 2
dc.relation.ispartofseriesJournal of Physics: Condensed Matter
dc.rights.accesslevelinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subject.fordCIENCIAS NATURALES
dc.subject.fordCIENCIAS FÍSICAS
dc.subject.inisEFECTO KONDO
dc.subject.inisCAMPO CRISTALINO
dc.subject.inisEFECTO ZEEMAN
dc.subject.keywordKondo effect
dc.subject.keywordCrystal field
dc.subject.keywordCe compounds
dc.subject.keywordYb compounds
dc.titleInterpretation of experimental results on Kondo systems with crystal field
dc.typeARTÍCULO
dc.type.openaireinfo:eu-repo/semantics/article
dc.type.snrdinfo:ar-repo/semantics/artículo
dc.type.versioninfo:eu-repo/semantics/publishedVersion

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