Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study

ic first-order transition line ending in a critical point. This critical point is responsible for the existence of large premartensitic fluctuations which manifest as broad peaks in the specific heat, not always associated with a true phase transition. The main conclusion is that premartensitic effe...

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Detalhes bibliográficos
Autores: Castán i Vidal, Maria Teresa, Vives i Santa-Eulàlia, Eduard, Lindgård, Per-Anker
Formato: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/10477
Acesso em linha:https://hdl.handle.net/2445/10477
Access Level:acceso abierto
Palavra-chave:Transformacions martensítiques
Xarxes cristal·lines
Mètode de Montecarlo
Martensitic transformations
Crystal lattices
Monte Carlo method
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spelling Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation studyCastán i Vidal, Maria TeresaVives i Santa-Eulàlia, EduardLindgård, Per-AnkerTransformacions martensítiquesXarxes cristal·linesMètode de MontecarloMartensitic transformationsCrystal latticesMonte Carlo methodic first-order transition line ending in a critical point. This critical point is responsible for the existence of large premartensitic fluctuations which manifest as broad peaks in the specific heat, not always associated with a true phase transition. The main conclusion is that premartensitic effects result from the interplay between the softness of the anomalous phonon driving the modulation and the magnetoelastic coupling. In particular, the premartensitic transition occurs when such coupling is strong enough to freeze the involved mode phonon. The implication of the results in relation to the available experimental data is discussed.The American Physical Society200920091999info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion14 p.application/pdfhttps://hdl.handle.net/2445/10477Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.60.7071Physical Review B, 1999, vol. 60, núm. 10, p. 7071-7084http://dx.doi.org/10.1103/PhysRevB.60.7071(c) The American Physical Society, 1999info:eu-repo/semantics/openAccessoai:recercat.cat:2445/104772026-05-29T05:05:01Z
dc.title.none.fl_str_mv Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
title Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
spellingShingle Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
Castán i Vidal, Maria Teresa
Transformacions martensítiques
Xarxes cristal·lines
Mètode de Montecarlo
Martensitic transformations
Crystal lattices
Monte Carlo method
title_short Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
title_full Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
title_fullStr Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
title_full_unstemmed Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
title_sort Modeling premartensitic effects in Ni2MnGa: A mean-field and Monte Carlo simulation study
dc.creator.none.fl_str_mv Castán i Vidal, Maria Teresa
Vives i Santa-Eulàlia, Eduard
Lindgård, Per-Anker
author Castán i Vidal, Maria Teresa
author_facet Castán i Vidal, Maria Teresa
Vives i Santa-Eulàlia, Eduard
Lindgård, Per-Anker
author_role author
author2 Vives i Santa-Eulàlia, Eduard
Lindgård, Per-Anker
author2_role author
author
dc.subject.none.fl_str_mv Transformacions martensítiques
Xarxes cristal·lines
Mètode de Montecarlo
Martensitic transformations
Crystal lattices
Monte Carlo method
topic Transformacions martensítiques
Xarxes cristal·lines
Mètode de Montecarlo
Martensitic transformations
Crystal lattices
Monte Carlo method
description ic first-order transition line ending in a critical point. This critical point is responsible for the existence of large premartensitic fluctuations which manifest as broad peaks in the specific heat, not always associated with a true phase transition. The main conclusion is that premartensitic effects result from the interplay between the softness of the anomalous phonon driving the modulation and the magnetoelastic coupling. In particular, the premartensitic transition occurs when such coupling is strong enough to freeze the involved mode phonon. The implication of the results in relation to the available experimental data is discussed.
publishDate 1999
dc.date.none.fl_str_mv 1999
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/10477
url https://hdl.handle.net/2445/10477
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.60.7071
Physical Review B, 1999, vol. 60, núm. 10, p. 7071-7084
http://dx.doi.org/10.1103/PhysRevB.60.7071
dc.rights.none.fl_str_mv (c) The American Physical Society, 1999
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 1999
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14 p.
application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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