Soft mode of antiferromagnetic multilayers near the surface spin-flop transition

Detalhes bibliográficos
Autor(a) principal: Dantas, Ana L.
Data de Publicação: 2005
Outros Autores: Vieira, Selma R., Almeida, N. S., Carriço, Artur da Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/28771
https://doi.org/10.1103/PhysRevB.71.014409
Resumo: We investigate the long wavelength soft mode of antiferromagnetic (AF) multilayers near the field induced instability of the AF order. We show that in the vicinity of the surface spin flop field sHSSFd the frequency of the lowest mode is V2 /g2=asHSSF−Hd+bsHSSF−Hd2, where a and b are functions of the magnetic parameters of the multilayer and H is the external field strength. For antiferromagnetic films the first order term is zero (due to the absence of demagnetizing effects) and b=1.
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spelling Dantas, Ana L.Vieira, Selma R.Almeida, N. S.Carriço, Artur da Silva2020-04-07T18:51:39Z2020-04-07T18:51:39Z2005DANTAS, Ana L.; VIEIRA, Selma Rozane; ALMEIDA, N. S.; CARRIÇO, A. S. Soft Mode of Antiferromagnetic Multilayers Near the Spin Flop Transition. Physical Review B - Condensed Matter and Materials Physics, EUA, v. 71, p. 44091-44095, 2005. ISSN 2469-9969 versão online. DOI https://doi.org/10.1103/PhysRevB.71.014409. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.71.014409. Acesso em: 07 abr. 2020.2469-9950 (print), 2469-9969 (online)https://repositorio.ufrn.br/jspui/handle/123456789/28771https://doi.org/10.1103/PhysRevB.71.014409Physical review BAntiferromagnetic multilayersSpin-flop transitionSoft mode of antiferromagnetic multilayers near the surface spin-flop transitioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe investigate the long wavelength soft mode of antiferromagnetic (AF) multilayers near the field induced instability of the AF order. We show that in the vicinity of the surface spin flop field sHSSFd the frequency of the lowest mode is V2 /g2=asHSSF−Hd+bsHSSF−Hd2, where a and b are functions of the magnetic parameters of the multilayer and H is the external field strength. For antiferromagnetic films the first order term is zero (due to the absence of demagnetizing effects) and b=1.engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALSoftModeOfAntiferromagnetic_Carrico_2005.pdfSoftModeOfAntiferromagnetic_Carrico_2005.pdfapplication/pdf59919https://repositorio.ufrn.br/bitstream/123456789/28771/1/SoftModeOfAntiferromagnetic_Carrico_2005.pdfec2e6e32d5c9fa8e52586478126300c1MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/28771/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTSoftModeOfAntiferromagnetic_Carrico_2005.pdf.txtSoftModeOfAntiferromagnetic_Carrico_2005.pdf.txtExtracted texttext/plain18547https://repositorio.ufrn.br/bitstream/123456789/28771/3/SoftModeOfAntiferromagnetic_Carrico_2005.pdf.txt9faeb93ff68910ca638c37040d5fa6d1MD53THUMBNAILSoftModeOfAntiferromagnetic_Carrico_2005.pdf.jpgSoftModeOfAntiferromagnetic_Carrico_2005.pdf.jpgGenerated Thumbnailimage/jpeg1858https://repositorio.ufrn.br/bitstream/123456789/28771/4/SoftModeOfAntiferromagnetic_Carrico_2005.pdf.jpgf3e43a2af85b1e36498ff6e5023f5932MD54123456789/287712020-04-19 04:47:29.409oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-04-19T07:47:29Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
title Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
spellingShingle Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
Dantas, Ana L.
Antiferromagnetic multilayers
Spin-flop transition
title_short Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
title_full Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
title_fullStr Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
title_full_unstemmed Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
title_sort Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
author Dantas, Ana L.
author_facet Dantas, Ana L.
Vieira, Selma R.
Almeida, N. S.
Carriço, Artur da Silva
author_role author
author2 Vieira, Selma R.
Almeida, N. S.
Carriço, Artur da Silva
author2_role author
author
author
dc.contributor.author.fl_str_mv Dantas, Ana L.
Vieira, Selma R.
Almeida, N. S.
Carriço, Artur da Silva
dc.subject.por.fl_str_mv Antiferromagnetic multilayers
Spin-flop transition
topic Antiferromagnetic multilayers
Spin-flop transition
description We investigate the long wavelength soft mode of antiferromagnetic (AF) multilayers near the field induced instability of the AF order. We show that in the vicinity of the surface spin flop field sHSSFd the frequency of the lowest mode is V2 /g2=asHSSF−Hd+bsHSSF−Hd2, where a and b are functions of the magnetic parameters of the multilayer and H is the external field strength. For antiferromagnetic films the first order term is zero (due to the absence of demagnetizing effects) and b=1.
publishDate 2005
dc.date.issued.fl_str_mv 2005
dc.date.accessioned.fl_str_mv 2020-04-07T18:51:39Z
dc.date.available.fl_str_mv 2020-04-07T18:51:39Z
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 DANTAS, Ana L.; VIEIRA, Selma Rozane; ALMEIDA, N. S.; CARRIÇO, A. S. Soft Mode of Antiferromagnetic Multilayers Near the Spin Flop Transition. Physical Review B - Condensed Matter and Materials Physics, EUA, v. 71, p. 44091-44095, 2005. ISSN 2469-9969 versão online. DOI https://doi.org/10.1103/PhysRevB.71.014409. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.71.014409. Acesso em: 07 abr. 2020.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/28771
dc.identifier.issn.none.fl_str_mv 2469-9950 (print), 2469-9969 (online)
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1103/PhysRevB.71.014409
identifier_str_mv DANTAS, Ana L.; VIEIRA, Selma Rozane; ALMEIDA, N. S.; CARRIÇO, A. S. Soft Mode of Antiferromagnetic Multilayers Near the Spin Flop Transition. Physical Review B - Condensed Matter and Materials Physics, EUA, v. 71, p. 44091-44095, 2005. ISSN 2469-9969 versão online. DOI https://doi.org/10.1103/PhysRevB.71.014409. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.71.014409. Acesso em: 07 abr. 2020.
2469-9950 (print), 2469-9969 (online)
url https://repositorio.ufrn.br/jspui/handle/123456789/28771
https://doi.org/10.1103/PhysRevB.71.014409
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 Physical review B
publisher.none.fl_str_mv Physical review B
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
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instname_str Universidade Federal do Rio Grande do Norte (UFRN)
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