Dynamical phase transition in vibrational surface modes

Detalhes bibliográficos
Autor(a) principal: Calvo,H. L.
Data de Publicação: 2006
Outros Autores: Pastawski,H. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600044
Resumo: We consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exact spectrum of surface excitations and discuss their dynamical features. In addition to the usually discussed localized and oscillatory regimes we also find a second phase transition where the surface mode frequency becomes purely imaginary and describes an overdamped regime. Noticeably, this transition has an exact correspondence to the oscillatory - overdamped transition of the standard oscillator with a frictional force proportional to velocity.
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spelling Dynamical phase transition in vibrational surface modesDynamical phase transitionVibrational localized statesOrigin of frictional forcesWe consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exact spectrum of surface excitations and discuss their dynamical features. In addition to the usually discussed localized and oscillatory regimes we also find a second phase transition where the surface mode frequency becomes purely imaginary and describes an overdamped regime. Noticeably, this transition has an exact correspondence to the oscillatory - overdamped transition of the standard oscillator with a frictional force proportional to velocity.Sociedade Brasileira de Física2006-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600044Brazilian Journal of Physics v.36 n.3b 2006reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332006000600044info:eu-repo/semantics/openAccessCalvo,H. L.Pastawski,H. M.eng2006-11-29T00:00:00Zoai:scielo:S0103-97332006000600044Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2006-11-29T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Dynamical phase transition in vibrational surface modes
title Dynamical phase transition in vibrational surface modes
spellingShingle Dynamical phase transition in vibrational surface modes
Calvo,H. L.
Dynamical phase transition
Vibrational localized states
Origin of frictional forces
title_short Dynamical phase transition in vibrational surface modes
title_full Dynamical phase transition in vibrational surface modes
title_fullStr Dynamical phase transition in vibrational surface modes
title_full_unstemmed Dynamical phase transition in vibrational surface modes
title_sort Dynamical phase transition in vibrational surface modes
author Calvo,H. L.
author_facet Calvo,H. L.
Pastawski,H. M.
author_role author
author2 Pastawski,H. M.
author2_role author
dc.contributor.author.fl_str_mv Calvo,H. L.
Pastawski,H. M.
dc.subject.por.fl_str_mv Dynamical phase transition
Vibrational localized states
Origin of frictional forces
topic Dynamical phase transition
Vibrational localized states
Origin of frictional forces
description We consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exact spectrum of surface excitations and discuss their dynamical features. In addition to the usually discussed localized and oscillatory regimes we also find a second phase transition where the surface mode frequency becomes purely imaginary and describes an overdamped regime. Noticeably, this transition has an exact correspondence to the oscillatory - overdamped transition of the standard oscillator with a frictional force proportional to velocity.
publishDate 2006
dc.date.none.fl_str_mv 2006-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600044
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600044
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332006000600044
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.36 n.3b 2006
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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