Nematic phase in stripe-forming systems within the self-consistent screening approximation

Detalhes bibliográficos
Autor(a) principal: Barci, Daniel G.
Data de Publicação: 2013
Outros Autores: Mendoza Coto, Alejandro, Stariolo, Daniel Adrian
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/101857
Resumo: We show that in order to describe the isotropic-nematic transition in stripe-forming systems with isotropic competing interactions of the Brazovskii class it is necessary to consider the next to leading order in a 1/N approximation for the effective Hamiltonian. This can be conveniently accomplished within the self-consistent screening approximation. We solve the relevant equations and show that the self-energy in this approximation is able to generate the essential wave vector dependence to account for the anisotropic character of a two-point correlation function characteristic of a nematic phase.
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spelling Barci, Daniel G.Mendoza Coto, AlejandroStariolo, Daniel Adrian2014-08-26T09:26:29Z20131539-3755http://hdl.handle.net/10183/101857000914506We show that in order to describe the isotropic-nematic transition in stripe-forming systems with isotropic competing interactions of the Brazovskii class it is necessary to consider the next to leading order in a 1/N approximation for the effective Hamiltonian. This can be conveniently accomplished within the self-consistent screening approximation. We solve the relevant equations and show that the self-energy in this approximation is able to generate the essential wave vector dependence to account for the anisotropic character of a two-point correlation function characteristic of a nematic phase.application/pdfengPhysical review. E, Statistical, nonlinear and soft matter physics. Vol. 88, no. 6 (Dec. 2013), 062140, 8 p.Transformações de faseCálculos de HFCálculos SCFPontos criticosNematic phase in stripe-forming systems within the self-consistent screening approximationEstrangeiroinfo: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:UFRGSORIGINAL000914506.pdf000914506.pdfTexto completo (inglês)application/pdf200212http://www.lume.ufrgs.br/bitstream/10183/101857/1/000914506.pdf983eca700b85d873dc9bbd4046a16abaMD51TEXT000914506.pdf.txt000914506.pdf.txtExtracted Texttext/plain36972http://www.lume.ufrgs.br/bitstream/10183/101857/2/000914506.pdf.txt765a00f64faa49ba1e757434e3a7facbMD52THUMBNAIL000914506.pdf.jpg000914506.pdf.jpgGenerated Thumbnailimage/jpeg2235http://www.lume.ufrgs.br/bitstream/10183/101857/3/000914506.pdf.jpg5acaf17fce6f8c2a957e373d597f44e7MD5310183/1018572018-10-26 09:52:26.144oai:www.lume.ufrgs.br:10183/101857Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-26T12:52:26Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Nematic phase in stripe-forming systems within the self-consistent screening approximation
title Nematic phase in stripe-forming systems within the self-consistent screening approximation
spellingShingle Nematic phase in stripe-forming systems within the self-consistent screening approximation
Barci, Daniel G.
Transformações de fase
Cálculos de HF
Cálculos SCF
Pontos criticos
title_short Nematic phase in stripe-forming systems within the self-consistent screening approximation
title_full Nematic phase in stripe-forming systems within the self-consistent screening approximation
title_fullStr Nematic phase in stripe-forming systems within the self-consistent screening approximation
title_full_unstemmed Nematic phase in stripe-forming systems within the self-consistent screening approximation
title_sort Nematic phase in stripe-forming systems within the self-consistent screening approximation
author Barci, Daniel G.
author_facet Barci, Daniel G.
Mendoza Coto, Alejandro
Stariolo, Daniel Adrian
author_role author
author2 Mendoza Coto, Alejandro
Stariolo, Daniel Adrian
author2_role author
author
dc.contributor.author.fl_str_mv Barci, Daniel G.
Mendoza Coto, Alejandro
Stariolo, Daniel Adrian
dc.subject.por.fl_str_mv Transformações de fase
Cálculos de HF
Cálculos SCF
Pontos criticos
topic Transformações de fase
Cálculos de HF
Cálculos SCF
Pontos criticos
description We show that in order to describe the isotropic-nematic transition in stripe-forming systems with isotropic competing interactions of the Brazovskii class it is necessary to consider the next to leading order in a 1/N approximation for the effective Hamiltonian. This can be conveniently accomplished within the self-consistent screening approximation. We solve the relevant equations and show that the self-energy in this approximation is able to generate the essential wave vector dependence to account for the anisotropic character of a two-point correlation function characteristic of a nematic phase.
publishDate 2013
dc.date.issued.fl_str_mv 2013
dc.date.accessioned.fl_str_mv 2014-08-26T09:26:29Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/101857
dc.identifier.issn.pt_BR.fl_str_mv 1539-3755
dc.identifier.nrb.pt_BR.fl_str_mv 000914506
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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. E, Statistical, nonlinear and soft matter physics. Vol. 88, no. 6 (Dec. 2013), 062140, 8 p.
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