Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇

We investigate the nonequilibrium behavior of the spin-ice Dy₂Ti₂O₇ by studying its magnetization as a function of the field sweep rate. Below the enigmatic ''freezing'' temperature T<sub>equil</sub> ≈ 600 mK, we find that even the slowest sweeps fail to yield the equ...

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Detalhes bibliográficos
Autores: Slobinsky, D., Castelnovo, Claudio, Borzi, Rodolfo Alberto, Gibbs, Alexandra S., Mackenzie, Andrew P., Moessner, Roderich, Grigera, Santiago Andrés
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Argentina
Recursos:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/126312
Acesso em linha:http://sedici.unlp.edu.ar/handle/10915/126312
Access Level:acceso abierto
Palavra-chave:Ciencias Exactas
Física
nonequilibrium behavior
spin-ice
magnetization
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spelling Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇Slobinsky, D.Castelnovo, ClaudioBorzi, Rodolfo AlbertoGibbs, Alexandra S.Mackenzie, Andrew P.Moessner, RoderichGrigera, Santiago AndrésCiencias ExactasFísicanonequilibrium behaviorspin-icemagnetizationWe investigate the nonequilibrium behavior of the spin-ice Dy₂Ti₂O₇ by studying its magnetization as a function of the field sweep rate. Below the enigmatic ''freezing'' temperature T<sub>equil</sub> ≈ 600 mK, we find that even the slowest sweeps fail to yield the equilibrium magnetization curve and instead give an initially much flatter curve. For higher sweep rates, the magnetization develops sharp steps accompanied by similarly sharp peaks in the temperature of the sample. We ascribe the former behavior to the energy barriers encountered in the magnetization process, which proceeds via flipping of spins on filaments traced out by the field-driven motion of the gapped, long-range interacting magnetic monopole excitations. The peaks in temperature result from the released Zeeman energy not being carried away efficiently; the resulting heating triggers a chain reaction.Facultad de Ciencias ExactasInstituto de Investigaciones Fisicoquímicas Teóricas y AplicadasInstituto de Física La PlataInstituto de Física de Líquidos y Sistemas Biológicos2010-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/126312enginfo:eu-repo/semantics/altIdentifier/issn/1079-7114info:eu-repo/semantics/altIdentifier/issn/0031-9007info:eu-repo/semantics/altIdentifier/arxiv/1010.4143info:eu-repo/semantics/altIdentifier/pmid/21231712info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevlett.105.267205info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2024-05-08T13:08:41Zoai:sedici.unlp.edu.ar:10915/126312Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292024-05-08 13:08:41.275SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
title Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
spellingShingle Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
Slobinsky, D.
Ciencias Exactas
Física
nonequilibrium behavior
spin-ice
magnetization
title_short Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
title_full Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
title_fullStr Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
title_full_unstemmed Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
title_sort Unconventional Magnetization Processes and Thermal Runaway in Spin-Ice Dy₂Ti₂O₇
dc.creator.none.fl_str_mv Slobinsky, D.
Castelnovo, Claudio
Borzi, Rodolfo Alberto
Gibbs, Alexandra S.
Mackenzie, Andrew P.
Moessner, Roderich
Grigera, Santiago Andrés
author Slobinsky, D.
author_facet Slobinsky, D.
Castelnovo, Claudio
Borzi, Rodolfo Alberto
Gibbs, Alexandra S.
Mackenzie, Andrew P.
Moessner, Roderich
Grigera, Santiago Andrés
author_role author
author2 Castelnovo, Claudio
Borzi, Rodolfo Alberto
Gibbs, Alexandra S.
Mackenzie, Andrew P.
Moessner, Roderich
Grigera, Santiago Andrés
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
nonequilibrium behavior
spin-ice
magnetization
topic Ciencias Exactas
Física
nonequilibrium behavior
spin-ice
magnetization
description We investigate the nonequilibrium behavior of the spin-ice Dy₂Ti₂O₇ by studying its magnetization as a function of the field sweep rate. Below the enigmatic ''freezing'' temperature T<sub>equil</sub> ≈ 600 mK, we find that even the slowest sweeps fail to yield the equilibrium magnetization curve and instead give an initially much flatter curve. For higher sweep rates, the magnetization develops sharp steps accompanied by similarly sharp peaks in the temperature of the sample. We ascribe the former behavior to the energy barriers encountered in the magnetization process, which proceeds via flipping of spins on filaments traced out by the field-driven motion of the gapped, long-range interacting magnetic monopole excitations. The peaks in temperature result from the released Zeeman energy not being carried away efficiently; the resulting heating triggers a chain reaction.
publishDate 2010
dc.date.none.fl_str_mv 2010-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/126312
url http://sedici.unlp.edu.ar/handle/10915/126312
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1079-7114
info:eu-repo/semantics/altIdentifier/issn/0031-9007
info:eu-repo/semantics/altIdentifier/arxiv/1010.4143
info:eu-repo/semantics/altIdentifier/pmid/21231712
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevlett.105.267205
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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