Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa

We show that the magnetoelastic coupling between the magnetization and the amplitude of a short wavelength phonon enables the existence of a first order premartensitic transition from a bcc to a micromodulated phase in Ni2MnGa. Such a magnetoelastic coupling has been experimentally evidenced by ac s...

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Autores: Planes Vila, Antoni, Obradó Llauradó, Eduard, Gonzàlez Comas, Alfons, Mañosa, Lluís
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1997
País:España
Institución: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:2445/12793
Acceso en línea:https://hdl.handle.net/2445/12793
Access Level:acceso abierto
Palabra clave:Equacions d'estat
Ciència dels materials
Regla de les fases i equilibri
Equations of state
Materials science
Phase rule and equilibrium
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spelling Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGaPlanes Vila, AntoniObradó Llauradó, EduardGonzàlez Comas, AlfonsMañosa, LluísEquacions d'estatCiència dels materialsRegla de les fases i equilibriEquations of stateMaterials sciencePhase rule and equilibriumWe show that the magnetoelastic coupling between the magnetization and the amplitude of a short wavelength phonon enables the existence of a first order premartensitic transition from a bcc to a micromodulated phase in Ni2MnGa. Such a magnetoelastic coupling has been experimentally evidenced by ac susceptibility and ultrasonic measurements under an applied magnetic field. A latent heat around 9 J/mol has been measured using a highly sensitive calorimeter. This value is in very good agreement with the value predicted by a proposed model.American Physical Society201020101997info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion4 p.application/pdfhttps://hdl.handle.net/2445/12793Articles 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 APS i http://dx.doi.org/10.1103/PhysRevLett.79.3926Physical Review Letters, 1997, vol. 79, núm. 20, p. 3926-3929http://dx.doi.org/10.1103/PhysRevLett.79.3926(c) American Physical Society, 1997info:eu-repo/semantics/openAccessoai:recercat.cat:2445/127932026-05-29T05:05:01Z
dc.title.none.fl_str_mv Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
title Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
spellingShingle Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
Planes Vila, Antoni
Equacions d'estat
Ciència dels materials
Regla de les fases i equilibri
Equations of state
Materials science
Phase rule and equilibrium
title_short Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
title_full Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
title_fullStr Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
title_full_unstemmed Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
title_sort Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa
dc.creator.none.fl_str_mv Planes Vila, Antoni
Obradó Llauradó, Eduard
Gonzàlez Comas, Alfons
Mañosa, Lluís
author Planes Vila, Antoni
author_facet Planes Vila, Antoni
Obradó Llauradó, Eduard
Gonzàlez Comas, Alfons
Mañosa, Lluís
author_role author
author2 Obradó Llauradó, Eduard
Gonzàlez Comas, Alfons
Mañosa, Lluís
author2_role author
author
author
dc.subject.none.fl_str_mv Equacions d'estat
Ciència dels materials
Regla de les fases i equilibri
Equations of state
Materials science
Phase rule and equilibrium
topic Equacions d'estat
Ciència dels materials
Regla de les fases i equilibri
Equations of state
Materials science
Phase rule and equilibrium
description We show that the magnetoelastic coupling between the magnetization and the amplitude of a short wavelength phonon enables the existence of a first order premartensitic transition from a bcc to a micromodulated phase in Ni2MnGa. Such a magnetoelastic coupling has been experimentally evidenced by ac susceptibility and ultrasonic measurements under an applied magnetic field. A latent heat around 9 J/mol has been measured using a highly sensitive calorimeter. This value is in very good agreement with the value predicted by a proposed model.
publishDate 1997
dc.date.none.fl_str_mv 1997
2010
2010
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/2445/12793
url https://hdl.handle.net/2445/12793
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 APS i http://dx.doi.org/10.1103/PhysRevLett.79.3926
Physical Review Letters, 1997, vol. 79, núm. 20, p. 3926-3929
http://dx.doi.org/10.1103/PhysRevLett.79.3926
dc.rights.none.fl_str_mv (c) American Physical Society, 1997
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 1997
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 4 p.
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv 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 15.81155

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