Magnetization reversal in single ferromagnetic rectangular nanowires
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/24384 |
Resumo: | We report on the magnetoresistance (MR) investigation of the magnetization reversal processes in single rectangular nanowire of Permalloy. A set of nanowires with lengths ranging from 6 to 20 μm, thicknesses fixed in 10 nm, and widths between 250 nm and 1.2 μm, was fabricated by means of AFM local anodic oxidation lithography. Magnetoresistive hysteresis loops show an abrupt jump corresponding to the magnetization reversal that depends on the angle between the wire axis and the applied magnetic field direction. The field value corresponding to the abrupt jump of the MR was associated to the nucleation field deduced from the Brown equations. By the angular dependence of this magnetization reversal field we were able to identify the nucleation mode as the magnetization buckling. We have investigated the temperature dependence of the switching field as well as its stochastic nature as a function of the in-plane angle |
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Oliveira, Alexandre Barbosa deSilva, Gilvânia Lucia daRezende, Sergio MachadoCOSTA, Antonio Azevedo da2017-11-29T19:52:18Z2017-11-29T19:52:18Z2010OLIVEIRA, Alexandre Barbosa de et al.Magnetization reversal in single ferromagnetic rectangular nanowires. Journal of Physics Conference Series (Online), v. 200, 2010. ISSN 1742-6596. Disponível em: <http://dx.doi.org/10.1088/1742-6596/200/7/072023>. Acesso em: 04 out. 2017.1742-6596https://repositorio.ufrn.br/jspui/handle/123456789/2438410.1088/1742-6596/200/7/072023engIOP PublishingMagnetizationmagnetoresistanceMagnetization reversal in single ferromagnetic rectangular nanowiresinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe report on the magnetoresistance (MR) investigation of the magnetization reversal processes in single rectangular nanowire of Permalloy. A set of nanowires with lengths ranging from 6 to 20 μm, thicknesses fixed in 10 nm, and widths between 250 nm and 1.2 μm, was fabricated by means of AFM local anodic oxidation lithography. Magnetoresistive hysteresis loops show an abrupt jump corresponding to the magnetization reversal that depends on the angle between the wire axis and the applied magnetic field direction. The field value corresponding to the abrupt jump of the MR was associated to the nucleation field deduced from the Brown equations. By the angular dependence of this magnetization reversal field we were able to identify the nucleation mode as the magnetization buckling. We have investigated the temperature dependence of the switching field as well as its stochastic nature as a function of the in-plane angleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALMagnetizationReversal_2010.pdfMagnetizationReversal_2010.pdfapplication/pdf551316https://repositorio.ufrn.br/bitstream/123456789/24384/1/MagnetizationReversal_2010.pdf282fb1f6ed723a3e101c7d1c0f914e7bMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.ufrn.br/bitstream/123456789/24384/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52TEXTMagnetizationReversal_2010.pdf.txtMagnetizationReversal_2010.pdf.txtExtracted texttext/plain13099https://repositorio.ufrn.br/bitstream/123456789/24384/3/MagnetizationReversal_2010.pdf.txtf1c09b0448bb616b6f2318d11224ce05MD53THUMBNAILMagnetizationReversal_2010.pdf.jpgMagnetizationReversal_2010.pdf.jpgIM Thumbnailimage/jpeg2970https://repositorio.ufrn.br/bitstream/123456789/24384/4/MagnetizationReversal_2010.pdf.jpge475f094ce70a6e86c63f81b5e5646d1MD54123456789/243842017-11-30 01:33:48.528oai:https://repositorio.ufrn.br:123456789/24384Tk9URTogUExBQ0UgWU9VUiBPV04gTElDRU5TRSBIRVJFClRoaXMgc2FtcGxlIGxpY2Vuc2UgaXMgcHJvdmlkZWQgZm9yIGluZm9ybWF0aW9uYWwgcHVycG9zZXMgb25seS4KCk5PTi1FWENMVVNJVkUgRElTVFJJQlVUSU9OIExJQ0VOU0UKCkJ5IHNpZ25pbmcgYW5kIHN1Ym1pdHRpbmcgdGhpcyBsaWNlbnNlLCB5b3UgKHRoZSBhdXRob3Iocykgb3IgY29weXJpZ2h0Cm93bmVyKSBncmFudHMgdG8gRFNwYWNlIFVuaXZlcnNpdHkgKERTVSkgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgdG8gcmVwcm9kdWNlLAp0cmFuc2xhdGUgKGFzIGRlZmluZWQgYmVsb3cpLCBhbmQvb3IgZGlzdHJpYnV0ZSB5b3VyIHN1Ym1pc3Npb24gKGluY2x1ZGluZwp0aGUgYWJzdHJhY3QpIHdvcmxkd2lkZSBpbiBwcmludCBhbmQgZWxlY3Ryb25pYyBmb3JtYXQgYW5kIGluIGFueSBtZWRpdW0sCmluY2x1ZGluZyBidXQgbm90IGxpbWl0ZWQgdG8gYXVkaW8gb3IgdmlkZW8uCgpZb3UgYWdyZWUgdGhhdCBEU1UgbWF5LCB3aXRob3V0IGNoYW5naW5nIHRoZSBjb250ZW50LCB0cmFuc2xhdGUgdGhlCnN1Ym1pc3Npb24gdG8gYW55IG1lZGl1bSBvciBmb3JtYXQgZm9yIHRoZSBwdXJwb3NlIG9mIHByZXNlcnZhdGlvbi4KCllvdSBhbHNvIGFncmVlIHRoYXQgRFNVIG1heSBrZWVwIG1vcmUgdGhhbiBvbmUgY29weSBvZiB0aGlzIHN1Ym1pc3Npb24gZm9yCnB1cnBvc2VzIG9mIHNlY3VyaXR5LCBiYWNrLXVwIGFuZCBwcmVzZXJ2YXRpb24uCgpZb3UgcmVwcmVzZW50IHRoYXQgdGhlIHN1Ym1pc3Npb24gaXMgeW91ciBvcmlnaW5hbCB3b3JrLCBhbmQgdGhhdCB5b3UgaGF2ZQp0aGUgcmlnaHQgdG8gZ3JhbnQgdGhlIHJpZ2h0cyBjb250YWluZWQgaW4gdGhpcyBsaWNlbnNlLiBZb3UgYWxzbyByZXByZXNlbnQKdGhhdCB5b3VyIHN1Ym1pc3Npb24gZG9lcyBub3QsIHRvIHRoZSBiZXN0IG9mIHlvdXIga25vd2xlZGdlLCBpbmZyaW5nZSB1cG9uCmFueW9uZSdzIGNvcHlyaWdodC4KCklmIHRoZSBzdWJtaXNzaW9uIGNvbnRhaW5zIG1hdGVyaWFsIGZvciB3aGljaCB5b3UgZG8gbm90IGhvbGQgY29weXJpZ2h0LAp5b3UgcmVwcmVzZW50IHRoYXQgeW91IGhhdmUgb2J0YWluZWQgdGhlIHVucmVzdHJpY3RlZCBwZXJtaXNzaW9uIG9mIHRoZQpjb3B5cmlnaHQgb3duZXIgdG8gZ3JhbnQgRFNVIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdApzdWNoIHRoaXJkLXBhcnR5IG93bmVkIG1hdGVyaWFsIGlzIGNsZWFybHkgaWRlbnRpZmllZCBhbmQgYWNrbm93bGVkZ2VkCndpdGhpbiB0aGUgdGV4dCBvciBjb250ZW50IG9mIHRoZSBzdWJtaXNzaW9uLgoKSUYgVEhFIFNVQk1JU1NJT04gSVMgQkFTRUQgVVBPTiBXT1JLIFRIQVQgSEFTIEJFRU4gU1BPTlNPUkVEIE9SIFNVUFBPUlRFRApCWSBBTiBBR0VOQ1kgT1IgT1JHQU5JWkFUSU9OIE9USEVSIFRIQU4gRFNVLCBZT1UgUkVQUkVTRU5UIFRIQVQgWU9VIEhBVkUKRlVMRklMTEVEIEFOWSBSSUdIVCBPRiBSRVZJRVcgT1IgT1RIRVIgT0JMSUdBVElPTlMgUkVRVUlSRUQgQlkgU1VDSApDT05UUkFDVCBPUiBBR1JFRU1FTlQuCgpEU1Ugd2lsbCBjbGVhcmx5IGlkZW50aWZ5IHlvdXIgbmFtZShzKSBhcyB0aGUgYXV0aG9yKHMpIG9yIG93bmVyKHMpIG9mIHRoZQpzdWJtaXNzaW9uLCBhbmQgd2lsbCBub3QgbWFrZSBhbnkgYWx0ZXJhdGlvbiwgb3RoZXIgdGhhbiBhcyBhbGxvd2VkIGJ5IHRoaXMKbGljZW5zZSwgdG8geW91ciBzdWJtaXNzaW9uLgo=Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2017-11-30T04:33:48Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Magnetization reversal in single ferromagnetic rectangular nanowires |
title |
Magnetization reversal in single ferromagnetic rectangular nanowires |
spellingShingle |
Magnetization reversal in single ferromagnetic rectangular nanowires Oliveira, Alexandre Barbosa de Magnetization magnetoresistance |
title_short |
Magnetization reversal in single ferromagnetic rectangular nanowires |
title_full |
Magnetization reversal in single ferromagnetic rectangular nanowires |
title_fullStr |
Magnetization reversal in single ferromagnetic rectangular nanowires |
title_full_unstemmed |
Magnetization reversal in single ferromagnetic rectangular nanowires |
title_sort |
Magnetization reversal in single ferromagnetic rectangular nanowires |
author |
Oliveira, Alexandre Barbosa de |
author_facet |
Oliveira, Alexandre Barbosa de Silva, Gilvânia Lucia da Rezende, Sergio Machado COSTA, Antonio Azevedo da |
author_role |
author |
author2 |
Silva, Gilvânia Lucia da Rezende, Sergio Machado COSTA, Antonio Azevedo da |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Alexandre Barbosa de Silva, Gilvânia Lucia da Rezende, Sergio Machado COSTA, Antonio Azevedo da |
dc.subject.por.fl_str_mv |
Magnetization magnetoresistance |
topic |
Magnetization magnetoresistance |
description |
We report on the magnetoresistance (MR) investigation of the magnetization reversal processes in single rectangular nanowire of Permalloy. A set of nanowires with lengths ranging from 6 to 20 μm, thicknesses fixed in 10 nm, and widths between 250 nm and 1.2 μm, was fabricated by means of AFM local anodic oxidation lithography. Magnetoresistive hysteresis loops show an abrupt jump corresponding to the magnetization reversal that depends on the angle between the wire axis and the applied magnetic field direction. The field value corresponding to the abrupt jump of the MR was associated to the nucleation field deduced from the Brown equations. By the angular dependence of this magnetization reversal field we were able to identify the nucleation mode as the magnetization buckling. We have investigated the temperature dependence of the switching field as well as its stochastic nature as a function of the in-plane angle |
publishDate |
2010 |
dc.date.issued.fl_str_mv |
2010 |
dc.date.accessioned.fl_str_mv |
2017-11-29T19:52:18Z |
dc.date.available.fl_str_mv |
2017-11-29T19:52:18Z |
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 |
OLIVEIRA, Alexandre Barbosa de et al.Magnetization reversal in single ferromagnetic rectangular nanowires. Journal of Physics Conference Series (Online), v. 200, 2010. ISSN 1742-6596. Disponível em: <http://dx.doi.org/10.1088/1742-6596/200/7/072023>. Acesso em: 04 out. 2017. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/24384 |
dc.identifier.issn.none.fl_str_mv |
1742-6596 |
dc.identifier.doi.none.fl_str_mv |
10.1088/1742-6596/200/7/072023 |
identifier_str_mv |
OLIVEIRA, Alexandre Barbosa de et al.Magnetization reversal in single ferromagnetic rectangular nanowires. Journal of Physics Conference Series (Online), v. 200, 2010. ISSN 1742-6596. Disponível em: <http://dx.doi.org/10.1088/1742-6596/200/7/072023>. Acesso em: 04 out. 2017. 1742-6596 10.1088/1742-6596/200/7/072023 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/24384 |
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 |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
instname_str |
Universidade Federal do Rio Grande do Norte (UFRN) |
instacron_str |
UFRN |
institution |
UFRN |
reponame_str |
Repositório Institucional da UFRN |
collection |
Repositório Institucional da UFRN |
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