Spin disorder scattering in magnetic metallic alloys

Anomalous behavior of the resistivity at or just below the Néel temperature in antiferromagnetic metals is usually attributed to the formation of superzone gaps. However, we find that RMn12−xFex alloys which have no such gaps exhibit a similarly anomalous resistivity. We show that electron scatterin...

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Detalhes bibliográficos
Autores: Stankiewicz, Jolanta, Bartolomé, Juan, Fruchart, Daniel
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2002
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/256538
Acesso em linha:http://hdl.handle.net/10261/256538
Access Level:Acceso aberto
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spelling Spin disorder scattering in magnetic metallic alloysStankiewicz, JolantaBartolomé, JuanFruchart, DanielAnomalous behavior of the resistivity at or just below the Néel temperature in antiferromagnetic metals is usually attributed to the formation of superzone gaps. However, we find that RMn12−xFex alloys which have no such gaps exhibit a similarly anomalous resistivity. We show that electron scattering by substitutional spin disorder can account for such behavior of itinerant magnets. This mechanism, which has not been studied before, leads to a relaxation rate that is proportional to x(12−x)m2, where m is the staggered magnetization. Together with spin fluctuations, phonon, and impurity scattering, it accounts well for the resistivity data we obtain for HoMn12−xFex, for 0≤x≤9, in the temperature range of 4 to 400 K.This work was in part supported by Project No. MAT 99/1142 of Comision Interministerial de Ciencia y Tecnologia and by LEA MANES, Spanish-French collaboration program.Peer reviewedAmerican Physical SocietyComisión Interministerial de Ciencia y Tecnología, CICYT (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212002info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/256538reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1103/PhysRevLett.89.106602Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2565382026-05-22T06:33:51Z
dc.title.none.fl_str_mv Spin disorder scattering in magnetic metallic alloys
title Spin disorder scattering in magnetic metallic alloys
spellingShingle Spin disorder scattering in magnetic metallic alloys
Stankiewicz, Jolanta
title_short Spin disorder scattering in magnetic metallic alloys
title_full Spin disorder scattering in magnetic metallic alloys
title_fullStr Spin disorder scattering in magnetic metallic alloys
title_full_unstemmed Spin disorder scattering in magnetic metallic alloys
title_sort Spin disorder scattering in magnetic metallic alloys
dc.creator.none.fl_str_mv Stankiewicz, Jolanta
Bartolomé, Juan
Fruchart, Daniel
author Stankiewicz, Jolanta
author_facet Stankiewicz, Jolanta
Bartolomé, Juan
Fruchart, Daniel
author_role author
author2 Bartolomé, Juan
Fruchart, Daniel
author2_role author
author
dc.contributor.none.fl_str_mv Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Anomalous behavior of the resistivity at or just below the Néel temperature in antiferromagnetic metals is usually attributed to the formation of superzone gaps. However, we find that RMn12−xFex alloys which have no such gaps exhibit a similarly anomalous resistivity. We show that electron scattering by substitutional spin disorder can account for such behavior of itinerant magnets. This mechanism, which has not been studied before, leads to a relaxation rate that is proportional to x(12−x)m2, where m is the staggered magnetization. Together with spin fluctuations, phonon, and impurity scattering, it accounts well for the resistivity data we obtain for HoMn12−xFex, for 0≤x≤9, in the temperature range of 4 to 400 K.
publishDate 2002
dc.date.none.fl_str_mv 2002
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/256538
url http://hdl.handle.net/10261/256538
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1103/PhysRevLett.89.106602
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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