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Theoretical investigation on the magnetocaloric effect in MnAs using a microscopic model to describe the magnetic and thermal hysteresis

dc.contributor.authorAlho, B. P.
dc.contributor.authorOliveira, N. A. de
dc.contributor.authorSousa, V. S. R. de
dc.contributor.authorGama, Sergio [UNIFESP]
dc.contributor.authorCoelho, A. A.
dc.contributor.authorCarvalho, A. Magnus G.
dc.contributor.authorvon Ranke, P. J.
dc.date.accessioned2016-01-24T14:27:20Z
dc.date.available2016-01-24T14:27:20Z
dc.date.issued2012-06-01
dc.identifierhttp://dx.doi.org/10.1016/j.ssc.2012.03.028
dc.identifier.citationSolid State Communications. Oxford: Pergamon-Elsevier B.V., v. 152, n. 11, p. 951-954, 2012.
dc.identifier.issn0038-1098
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/34966
dc.description.abstractWe report the thermal and magnetic hysteresis diagram for mnAs that comes from a microscopic description of a magnetic system through a model Hamiltonian that takes into account the magnetoelastic interaction. the temperature and magnetic hysteresis intervals are governed by the magnetoelastic interaction parameter, which leads to the energy barrier between stable and metastable minima in the exact free energy, obtained from our microscopic model. Application of the model to the MnAs first-order magnetic material, which presents high hysteresis effect, leads to a good agreement with the experimental magnetic and magnetocaloric data. (c) 2012 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent951-954
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSolid State Communications
dc.rightsAcesso restrito
dc.subjectMagnetocaloric effecten
dc.subjectMagnetic hysteresisen
dc.subjectFirst order magnetic phase transitionen
dc.titleTheoretical investigation on the magnetocaloric effect in MnAs using a microscopic model to describe the magnetic and thermal hysteresisen
dc.typeArtigo
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.contributor.institutionUniversidade do Estado do Rio de Janeiro (UERJ)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionInst Nacl Metrol Normalizacao & Qualidade Ind INM
dc.description.affiliationUniv Estado Rio de Janeiro, Inst Fis Armando Dias Tavares, BR-20550013 Rio de Janeiro, Brazil
dc.description.affiliationUnifesp, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, Brazil
dc.description.affiliationUniv Estadual Campinas UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
dc.description.affiliationInst Nacl Metrol Normalizacao & Qualidade Ind INM, Div Mat Metrol, BR-25250020 Duque de Caxias, RJ, Brazil
dc.description.affiliationUnifespUnifesp, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, Brazil
dc.identifier.doi10.1016/j.ssc.2012.03.028
dc.description.sourceWeb of Science
dc.identifier.wosWOS:000304295600008


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