Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)]
Autor(a) principal: | |
---|---|
Data de Publicação: | 2004 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/96093 |
Resumo: | Hu, Jin, and Ma have proposed a theoretical investigation on the influence of the antiferromagnetic layer thickness on the magnetic properties of ferromagnetic/ antiferromagnetic bilayers [J. Appl. Phys. 94, 2529 (2003)], considering both the bilinear and biquadratic exchange couplings, and have claimed that from their formulas for the hysteresis loop displacement and coercivity many interesting conclusions can be extracted. Unfortunately, the mathematical procedure used to find the equilibrium of the system is based on inadequate stability conditions and has led to nonphysical results. More importantly, the simple phenomenological model, employed by the authors, is intrinsically not capable to give the antiferromagnetic layer thickness dependence of the magnetic properties of such exchange-coupled bilayers. |
id |
UFRGS-2_3c51b0641efe13c3066cc7ffc72cc10b |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/96093 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Geshev, Julian PenkovPereira, Luis GustavoSchmidt, Joao Edgar2014-06-06T02:06:19Z20040021-8979http://hdl.handle.net/10183/96093000504059Hu, Jin, and Ma have proposed a theoretical investigation on the influence of the antiferromagnetic layer thickness on the magnetic properties of ferromagnetic/ antiferromagnetic bilayers [J. Appl. Phys. 94, 2529 (2003)], considering both the bilinear and biquadratic exchange couplings, and have claimed that from their formulas for the hysteresis loop displacement and coercivity many interesting conclusions can be extracted. Unfortunately, the mathematical procedure used to find the equilibrium of the system is based on inadequate stability conditions and has led to nonphysical results. More importantly, the simple phenomenological model, employed by the authors, is intrinsically not capable to give the antiferromagnetic layer thickness dependence of the magnetic properties of such exchange-coupled bilayers.application/pdfengJournal of applied physics. Melville. Vol. 96, no. 3 (Aug. 2004), p. 1763-1764Materiais antiferromagnéticosForca coercivaMateriais ferromagnéticosHisteresePolarização por intercâmbioInterações de troca (elétron)Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)]Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000504059.pdf000504059.pdfTexto completo (inglês)application/pdf185693http://www.lume.ufrgs.br/bitstream/10183/96093/1/000504059.pdfe0fc379d287cb846a0a89f8e180b3211MD51TEXT000504059.pdf.txt000504059.pdf.txtExtracted Texttext/plain9350http://www.lume.ufrgs.br/bitstream/10183/96093/2/000504059.pdf.txtb248e4798118f2a27ec5f13be1f9cfc1MD52THUMBNAIL000504059.pdf.jpg000504059.pdf.jpgGenerated Thumbnailimage/jpeg1621http://www.lume.ufrgs.br/bitstream/10183/96093/3/000504059.pdf.jpgcd938645457b01cfabed264aa0d0069aMD5310183/960932023-09-20 03:30:18.083733oai:www.lume.ufrgs.br:10183/96093Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-20T06:30:18Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] |
title |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] |
spellingShingle |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] Geshev, Julian Penkov Materiais antiferromagnéticos Forca coerciva Materiais ferromagnéticos Histerese Polarização por intercâmbio Interações de troca (elétron) |
title_short |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] |
title_full |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] |
title_fullStr |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] |
title_full_unstemmed |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] |
title_sort |
Comment on "Thickness dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer" [J.Appl.Phys. 94, 2529 (2003)] |
author |
Geshev, Julian Penkov |
author_facet |
Geshev, Julian Penkov Pereira, Luis Gustavo Schmidt, Joao Edgar |
author_role |
author |
author2 |
Pereira, Luis Gustavo Schmidt, Joao Edgar |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Geshev, Julian Penkov Pereira, Luis Gustavo Schmidt, Joao Edgar |
dc.subject.por.fl_str_mv |
Materiais antiferromagnéticos Forca coerciva Materiais ferromagnéticos Histerese Polarização por intercâmbio Interações de troca (elétron) |
topic |
Materiais antiferromagnéticos Forca coerciva Materiais ferromagnéticos Histerese Polarização por intercâmbio Interações de troca (elétron) |
description |
Hu, Jin, and Ma have proposed a theoretical investigation on the influence of the antiferromagnetic layer thickness on the magnetic properties of ferromagnetic/ antiferromagnetic bilayers [J. Appl. Phys. 94, 2529 (2003)], considering both the bilinear and biquadratic exchange couplings, and have claimed that from their formulas for the hysteresis loop displacement and coercivity many interesting conclusions can be extracted. Unfortunately, the mathematical procedure used to find the equilibrium of the system is based on inadequate stability conditions and has led to nonphysical results. More importantly, the simple phenomenological model, employed by the authors, is intrinsically not capable to give the antiferromagnetic layer thickness dependence of the magnetic properties of such exchange-coupled bilayers. |
publishDate |
2004 |
dc.date.issued.fl_str_mv |
2004 |
dc.date.accessioned.fl_str_mv |
2014-06-06T02:06:19Z |
dc.type.driver.fl_str_mv |
Estrangeiro 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://hdl.handle.net/10183/96093 |
dc.identifier.issn.pt_BR.fl_str_mv |
0021-8979 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000504059 |
identifier_str_mv |
0021-8979 000504059 |
url |
http://hdl.handle.net/10183/96093 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of applied physics. Melville. Vol. 96, no. 3 (Aug. 2004), p. 1763-1764 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/96093/1/000504059.pdf http://www.lume.ufrgs.br/bitstream/10183/96093/2/000504059.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/96093/3/000504059.pdf.jpg |
bitstream.checksum.fl_str_mv |
e0fc379d287cb846a0a89f8e180b3211 b248e4798118f2a27ec5f13be1f9cfc1 cd938645457b01cfabed264aa0d0069a |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801224835745972224 |