The van Hemmen model and effect of random crystalline anisotropy field
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jmmm.2015.09.050 http://hdl.handle.net/11449/158569 |
Resumo: | In this work, we have presented the generalized phase diagrams of the van Hemmen model for spin S=1 in the presence of an anisotropic term of random crystalline field. In order to study the critical behavior of the phase transitions, we employed a mean-field Curie-Weiss approach, which allows calculation of the free energy and the equations of state of the model. The phase diagrams obtained here displayed tricritical behavior, with secondorder phase transition lines separated from the first-order phase transition lines by a tricritical point. (C) 2015 Elsevier B.V. All rights reserved. |
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Repositório Institucional da UNESP |
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The van Hemmen model and effect of random crystalline anisotropy fieldRandom crystalline fieldVan Hemmen modelPhase diagramIn this work, we have presented the generalized phase diagrams of the van Hemmen model for spin S=1 in the presence of an anisotropic term of random crystalline field. In order to study the critical behavior of the phase transitions, we employed a mean-field Curie-Weiss approach, which allows calculation of the free energy and the equations of state of the model. The phase diagrams obtained here displayed tricritical behavior, with secondorder phase transition lines separated from the first-order phase transition lines by a tricritical point. (C) 2015 Elsevier B.V. All rights reserved.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)FAPEMATInsert (Brazilian agency)FAPEAM (Brazilian agency)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Fed Mato Grosso, Inst Fis, BR-78060900 Cuiaba, MG, BrazilUniv Estadual Paulista, BR-14800901 Sao Paulo, BrazilUniv Fed Amazona, Dept Fis, Inst Nacl Sistemas Complexes, BR-69077000 Manaus, Amazonas, BrazilUniv Estadual Paulista, BR-14800901 Sao Paulo, BrazilFAPEMATInsert (Brazilian agency): 685524/2010Elsevier B.V.Universidade Federal de Mato Grosso do Sul (UFMS)Universidade Estadual Paulista (Unesp)Univ Fed AmazonaMorais, Denes M. deGodoy, MauricioArruda, Alberto S. deSilva, Jonathas N. da [UNESP]Ricardo de Sousa, J.2018-11-26T15:28:09Z2018-11-26T15:28:09Z2016-01-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article253-258application/pdfhttp://dx.doi.org/10.1016/j.jmmm.2015.09.050Journal Of Magnetism And Magnetic Materials. Amsterdam: Elsevier Science Bv, v. 398, p. 253-258, 2016.0304-8853http://hdl.handle.net/11449/15856910.1016/j.jmmm.2015.09.050WOS:000363462200039WOS000363462200039.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Magnetism And Magnetic Materials0,786info:eu-repo/semantics/openAccess2023-11-16T06:10:01Zoai:repositorio.unesp.br:11449/158569Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:49:42.948622Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The van Hemmen model and effect of random crystalline anisotropy field |
title |
The van Hemmen model and effect of random crystalline anisotropy field |
spellingShingle |
The van Hemmen model and effect of random crystalline anisotropy field Morais, Denes M. de Random crystalline field Van Hemmen model Phase diagram |
title_short |
The van Hemmen model and effect of random crystalline anisotropy field |
title_full |
The van Hemmen model and effect of random crystalline anisotropy field |
title_fullStr |
The van Hemmen model and effect of random crystalline anisotropy field |
title_full_unstemmed |
The van Hemmen model and effect of random crystalline anisotropy field |
title_sort |
The van Hemmen model and effect of random crystalline anisotropy field |
author |
Morais, Denes M. de |
author_facet |
Morais, Denes M. de Godoy, Mauricio Arruda, Alberto S. de Silva, Jonathas N. da [UNESP] Ricardo de Sousa, J. |
author_role |
author |
author2 |
Godoy, Mauricio Arruda, Alberto S. de Silva, Jonathas N. da [UNESP] Ricardo de Sousa, J. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Mato Grosso do Sul (UFMS) Universidade Estadual Paulista (Unesp) Univ Fed Amazona |
dc.contributor.author.fl_str_mv |
Morais, Denes M. de Godoy, Mauricio Arruda, Alberto S. de Silva, Jonathas N. da [UNESP] Ricardo de Sousa, J. |
dc.subject.por.fl_str_mv |
Random crystalline field Van Hemmen model Phase diagram |
topic |
Random crystalline field Van Hemmen model Phase diagram |
description |
In this work, we have presented the generalized phase diagrams of the van Hemmen model for spin S=1 in the presence of an anisotropic term of random crystalline field. In order to study the critical behavior of the phase transitions, we employed a mean-field Curie-Weiss approach, which allows calculation of the free energy and the equations of state of the model. The phase diagrams obtained here displayed tricritical behavior, with secondorder phase transition lines separated from the first-order phase transition lines by a tricritical point. (C) 2015 Elsevier B.V. All rights reserved. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-15 2018-11-26T15:28:09Z 2018-11-26T15:28:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jmmm.2015.09.050 Journal Of Magnetism And Magnetic Materials. Amsterdam: Elsevier Science Bv, v. 398, p. 253-258, 2016. 0304-8853 http://hdl.handle.net/11449/158569 10.1016/j.jmmm.2015.09.050 WOS:000363462200039 WOS000363462200039.pdf |
url |
http://dx.doi.org/10.1016/j.jmmm.2015.09.050 http://hdl.handle.net/11449/158569 |
identifier_str_mv |
Journal Of Magnetism And Magnetic Materials. Amsterdam: Elsevier Science Bv, v. 398, p. 253-258, 2016. 0304-8853 10.1016/j.jmmm.2015.09.050 WOS:000363462200039 WOS000363462200039.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Magnetism And Magnetic Materials 0,786 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
253-258 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128864666255360 |