Structural and magnetic study of the MnAs magnetocaloric compound

Detalhes bibliográficos
Autor(a) principal: Nascimento,Fabiana Cristina
Data de Publicação: 2006
Outros Autores: Santos,Adenilson Oliveira dos, Campos,Ariana de, Gama,Sérgio, Cardoso,Lisandro Pavie
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000100021
Resumo: The temperature induced phase transition in MnAs is analyzed in this work using X ray Rietveld refinement. The results show the presence of the hexagonal phase (P6(3)/mmc) at room temperature and the first-order structural-magnetic transition to the orthorhombic phase (Pnma) around 318 K was followed in detail. The MnAs magnetic characterization allowed to obtain the transition temperature and a maximum value of 47 J/(kg.K) for the measured magnetocaloric effect for a magnetic field variation of 5 T.
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spelling Structural and magnetic study of the MnAs magnetocaloric compoundMnAs intermetallic compoundmagnetocaloric effectstructural phase transitionThe temperature induced phase transition in MnAs is analyzed in this work using X ray Rietveld refinement. The results show the presence of the hexagonal phase (P6(3)/mmc) at room temperature and the first-order structural-magnetic transition to the orthorhombic phase (Pnma) around 318 K was followed in detail. The MnAs magnetic characterization allowed to obtain the transition temperature and a maximum value of 47 J/(kg.K) for the measured magnetocaloric effect for a magnetic field variation of 5 T.ABM, ABC, ABPol2006-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000100021Materials Research v.9 n.1 2006reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392006000100021info:eu-repo/semantics/openAccessNascimento,Fabiana CristinaSantos,Adenilson Oliveira dosCampos,Ariana deGama,SérgioCardoso,Lisandro Pavieeng2006-04-10T00:00:00Zoai:scielo:S1516-14392006000100021Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2006-04-10T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Structural and magnetic study of the MnAs magnetocaloric compound
title Structural and magnetic study of the MnAs magnetocaloric compound
spellingShingle Structural and magnetic study of the MnAs magnetocaloric compound
Nascimento,Fabiana Cristina
MnAs intermetallic compound
magnetocaloric effect
structural phase transition
title_short Structural and magnetic study of the MnAs magnetocaloric compound
title_full Structural and magnetic study of the MnAs magnetocaloric compound
title_fullStr Structural and magnetic study of the MnAs magnetocaloric compound
title_full_unstemmed Structural and magnetic study of the MnAs magnetocaloric compound
title_sort Structural and magnetic study of the MnAs magnetocaloric compound
author Nascimento,Fabiana Cristina
author_facet Nascimento,Fabiana Cristina
Santos,Adenilson Oliveira dos
Campos,Ariana de
Gama,Sérgio
Cardoso,Lisandro Pavie
author_role author
author2 Santos,Adenilson Oliveira dos
Campos,Ariana de
Gama,Sérgio
Cardoso,Lisandro Pavie
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Nascimento,Fabiana Cristina
Santos,Adenilson Oliveira dos
Campos,Ariana de
Gama,Sérgio
Cardoso,Lisandro Pavie
dc.subject.por.fl_str_mv MnAs intermetallic compound
magnetocaloric effect
structural phase transition
topic MnAs intermetallic compound
magnetocaloric effect
structural phase transition
description The temperature induced phase transition in MnAs is analyzed in this work using X ray Rietveld refinement. The results show the presence of the hexagonal phase (P6(3)/mmc) at room temperature and the first-order structural-magnetic transition to the orthorhombic phase (Pnma) around 318 K was followed in detail. The MnAs magnetic characterization allowed to obtain the transition temperature and a maximum value of 47 J/(kg.K) for the measured magnetocaloric effect for a magnetic field variation of 5 T.
publishDate 2006
dc.date.none.fl_str_mv 2006-03-01
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=S1516-14392006000100021
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000100021
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392006000100021
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.9 n.1 2006
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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