Phase transitions in asymmetric potts models : breakdown of classical mean-field picture

Detalhes bibliográficos
Autor(a) principal: Gusmao, Miguel Angelo Cavalheiro
Data de Publicação: 1987
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/103627
Resumo: It is shown that mean-field theory fails to give a correct qualitative picture of the thermodynamic behavior of the q-state Potts model when the exchange interaction is anisotropic in spin space. The correct picture is recovered either by introducing a single-particle anisotropy or by taking correlations into account via a Bethe-Peierls approximation. This analysis helps the interpretation of previous renormalization-group results for asymmetric Potts models.
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spelling Gusmao, Miguel Angelo Cavalheiro2014-09-23T02:12:27Z19870163-1829http://hdl.handle.net/10183/103627000112845It is shown that mean-field theory fails to give a correct qualitative picture of the thermodynamic behavior of the q-state Potts model when the exchange interaction is anisotropic in spin space. The correct picture is recovered either by introducing a single-particle anisotropy or by taking correlations into account via a Bethe-Peierls approximation. This analysis helps the interpretation of previous renormalization-group results for asymmetric Potts models.application/pdfengPhysical review. B, Condensed Matter. New York. Vol. 36, no. 1 (July 1987), p. 779-782Física da matéria condensadaTermodinâmicaTransformações de fasePhase transitions in asymmetric potts models : breakdown of classical mean-field pictureEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000112845.pdf000112845.pdfTexto completo (inglês)application/pdf505230http://www.lume.ufrgs.br/bitstream/10183/103627/1/000112845.pdf575bbd86c772bf0f346e99ae84da23aaMD51TEXT000112845.pdf.txt000112845.pdf.txtExtracted Texttext/plain17781http://www.lume.ufrgs.br/bitstream/10183/103627/2/000112845.pdf.txtbc58a100b842db58519cd4b300a65b2fMD5210183/1036272018-06-07 02:33:08.944388oai:www.lume.ufrgs.br:10183/103627Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-06-07T05:33:08Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
title Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
spellingShingle Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
Gusmao, Miguel Angelo Cavalheiro
Física da matéria condensada
Termodinâmica
Transformações de fase
title_short Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
title_full Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
title_fullStr Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
title_full_unstemmed Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
title_sort Phase transitions in asymmetric potts models : breakdown of classical mean-field picture
author Gusmao, Miguel Angelo Cavalheiro
author_facet Gusmao, Miguel Angelo Cavalheiro
author_role author
dc.contributor.author.fl_str_mv Gusmao, Miguel Angelo Cavalheiro
dc.subject.por.fl_str_mv Física da matéria condensada
Termodinâmica
Transformações de fase
topic Física da matéria condensada
Termodinâmica
Transformações de fase
description It is shown that mean-field theory fails to give a correct qualitative picture of the thermodynamic behavior of the q-state Potts model when the exchange interaction is anisotropic in spin space. The correct picture is recovered either by introducing a single-particle anisotropy or by taking correlations into account via a Bethe-Peierls approximation. This analysis helps the interpretation of previous renormalization-group results for asymmetric Potts models.
publishDate 1987
dc.date.issued.fl_str_mv 1987
dc.date.accessioned.fl_str_mv 2014-09-23T02:12:27Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/103627
dc.identifier.issn.pt_BR.fl_str_mv 0163-1829
dc.identifier.nrb.pt_BR.fl_str_mv 000112845
identifier_str_mv 0163-1829
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review. B, Condensed Matter. New York. Vol. 36, no. 1 (July 1987), p. 779-782
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