Heat capacity of compensated F/AF bilayers
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/28814 https://doi.org/10.1016/j.ssc.2005.04.008 |
Resumo: | We report a theoretical study of the magnetic heat capacity, cV(T), of exchange coupled compensated ferromagnet/antiferromagnetic bilayers. We show that cV(T) may display a large peak at the temperature TR where the interface magnetic frustration induces a 90° reorientation of the F layer. We study Fe/FeF2 bilayers and show that TR and the magnitude of the cV(T) peak depend on the strength of the interface exchange. We suggest how the sign of the interface exchange energy parameter can be investigated using features produced by external fields. |
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Silva, M. L.Dantas, Ana L.Carriço, Artur da Silva2020-04-20T11:03:45Z2020-04-20T11:03:45Z2005SILVA, Melquisedec Lourenço da; DANTAS, Ana Lúcia; CARRIÇO, A. S. Heat Capacity of Compensated F/AF Bilayers. Solid State Communications, Inglaterra, v. 135, n.11-12, p. 769-774, 2005. ISSN 0038-1098. DOI https://doi.org/10.1016/j.ssc.2005.04.008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0038109805003479. Acesso em: 20 abr. 2020.0038-1098https://repositorio.ufrn.br/jspui/handle/123456789/28814https://doi.org/10.1016/j.ssc.2005.04.008ELSEVIERA. Magnetic bilayersD. Interface exchangeD. ReorientationHeat capacity of compensated F/AF bilayersinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe report a theoretical study of the magnetic heat capacity, cV(T), of exchange coupled compensated ferromagnet/antiferromagnetic bilayers. We show that cV(T) may display a large peak at the temperature TR where the interface magnetic frustration induces a 90° reorientation of the F layer. We study Fe/FeF2 bilayers and show that TR and the magnitude of the cV(T) peak depend on the strength of the interface exchange. We suggest how the sign of the interface exchange energy parameter can be investigated using features produced by external fields.engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALHeatCapacityOfCompensated_Carrico_2005.pdfHeatCapacityOfCompensated_Carrico_2005.pdfapplication/pdf185457https://repositorio.ufrn.br/bitstream/123456789/28814/1/HeatCapacityOfCompensated_Carrico_2005.pdf4c6a93f489a880a0556a37ebec7e9602MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/28814/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTHeatCapacityOfCompensated_Carrico_2005.pdf.txtHeatCapacityOfCompensated_Carrico_2005.pdf.txtExtracted texttext/plain25770https://repositorio.ufrn.br/bitstream/123456789/28814/3/HeatCapacityOfCompensated_Carrico_2005.pdf.txt57ce85112438de5fdf794019a6a015d8MD53THUMBNAILHeatCapacityOfCompensated_Carrico_2005.pdf.jpgHeatCapacityOfCompensated_Carrico_2005.pdf.jpgGenerated Thumbnailimage/jpeg1764https://repositorio.ufrn.br/bitstream/123456789/28814/4/HeatCapacityOfCompensated_Carrico_2005.pdf.jpg49049448a942b17b1ac1ad9862554956MD54123456789/288142020-04-26 04:30:38.211oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-04-26T07:30:38Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Heat capacity of compensated F/AF bilayers |
title |
Heat capacity of compensated F/AF bilayers |
spellingShingle |
Heat capacity of compensated F/AF bilayers Silva, M. L. A. Magnetic bilayers D. Interface exchange D. Reorientation |
title_short |
Heat capacity of compensated F/AF bilayers |
title_full |
Heat capacity of compensated F/AF bilayers |
title_fullStr |
Heat capacity of compensated F/AF bilayers |
title_full_unstemmed |
Heat capacity of compensated F/AF bilayers |
title_sort |
Heat capacity of compensated F/AF bilayers |
author |
Silva, M. L. |
author_facet |
Silva, M. L. Dantas, Ana L. Carriço, Artur da Silva |
author_role |
author |
author2 |
Dantas, Ana L. Carriço, Artur da Silva |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, M. L. Dantas, Ana L. Carriço, Artur da Silva |
dc.subject.por.fl_str_mv |
A. Magnetic bilayers D. Interface exchange D. Reorientation |
topic |
A. Magnetic bilayers D. Interface exchange D. Reorientation |
description |
We report a theoretical study of the magnetic heat capacity, cV(T), of exchange coupled compensated ferromagnet/antiferromagnetic bilayers. We show that cV(T) may display a large peak at the temperature TR where the interface magnetic frustration induces a 90° reorientation of the F layer. We study Fe/FeF2 bilayers and show that TR and the magnitude of the cV(T) peak depend on the strength of the interface exchange. We suggest how the sign of the interface exchange energy parameter can be investigated using features produced by external fields. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2020-04-20T11:03:45Z |
dc.date.available.fl_str_mv |
2020-04-20T11:03:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Melquisedec Lourenço da; DANTAS, Ana Lúcia; CARRIÇO, A. S. Heat Capacity of Compensated F/AF Bilayers. Solid State Communications, Inglaterra, v. 135, n.11-12, p. 769-774, 2005. ISSN 0038-1098. DOI https://doi.org/10.1016/j.ssc.2005.04.008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0038109805003479. Acesso em: 20 abr. 2020. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/28814 |
dc.identifier.issn.none.fl_str_mv |
0038-1098 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.ssc.2005.04.008 |
identifier_str_mv |
SILVA, Melquisedec Lourenço da; DANTAS, Ana Lúcia; CARRIÇO, A. S. Heat Capacity of Compensated F/AF Bilayers. Solid State Communications, Inglaterra, v. 135, n.11-12, p. 769-774, 2005. ISSN 0038-1098. DOI https://doi.org/10.1016/j.ssc.2005.04.008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0038109805003479. Acesso em: 20 abr. 2020. 0038-1098 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/28814 https://doi.org/10.1016/j.ssc.2005.04.008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
ELSEVIER |
publisher.none.fl_str_mv |
ELSEVIER |
dc.source.none.fl_str_mv |
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Universidade Federal do Rio Grande do Norte (UFRN) |
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UFRN |
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UFRN |
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Repositório Institucional da UFRN |
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Repositório Institucional da UFRN |
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