Quantum tunneling of magnetization in single domain particles

We present a study of the magnetic relaxation of several ferrofluids composed of particles of about 40 Å in diameter (Fe3O4FeC, CoFe2O4). Our key observation is a nonthermal character of the relaxation below 3 K for the CoFe2O4 ferrofluid and below 1 K for the FeC ferrofluid. The crossover temperatu...

Descripción completa

Detalles Bibliográficos
Autores: Tejada Palacios, Javier, Balcells i Argemí, Lluís, Linderoth, S. (Soren), Perzynski, R., Rigau, B., Barbara, B., Bacri, J. C. (Jean Claude)
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1993
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/22092
Acceso en línea:https://hdl.handle.net/2445/22092
Access Level:acceso abierto
Palabra clave:Relaxació magnètica
Magnetisme
Efecte túnel
Matèria condensada
Anisotropia
Magnetic relaxation
Magnetism
Tunneling (Physics)
Condensed matter
Anisotropy
id ES_4c4bb6cd6ddef99900c1f5db9782fe55
oai_identifier_str oai:recercat.cat:2445/22092
network_acronym_str ES
network_name_str España
repository_id_str
spelling Quantum tunneling of magnetization in single domain particlesTejada Palacios, JavierBalcells i Argemí, LluísLinderoth, S. (Soren)Perzynski, R.Rigau, B.Barbara, B.Bacri, J. C. (Jean Claude)Relaxació magnèticaMagnetismeEfecte túnelMatèria condensadaAnisotropiaMagnetic relaxationMagnetismTunneling (Physics)Condensed matterAnisotropyWe present a study of the magnetic relaxation of several ferrofluids composed of particles of about 40 Å in diameter (Fe3O4FeC, CoFe2O4). Our key observation is a nonthermal character of the relaxation below 3 K for the CoFe2O4 ferrofluid and below 1 K for the FeC ferrofluid. The crossover temperature from thermal to nonthermal (quantum) regime is in accordance with theoretical suggestions of macroscopic quantum tunneling of magnetization in single doma in particlesAmerican Institute of Physics201220121993info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion3 p.application/pdfhttps://hdl.handle.net/2445/22092Articles publicats en revistes (Física de la Matèria Condensada)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció digital del document proporcionada per AIP i http://dx.doi.org/10.1063/1.352445Journal of Applied Physics, 1993, vol. 73, núm. 10, p. 6952-6954http://dx.doi.org/10.1063/1.352445(c) American Institute of Physics, 1993info:eu-repo/semantics/openAccessoai:recercat.cat:2445/220922026-05-29T05:05:01Z
dc.title.none.fl_str_mv Quantum tunneling of magnetization in single domain particles
title Quantum tunneling of magnetization in single domain particles
spellingShingle Quantum tunneling of magnetization in single domain particles
Tejada Palacios, Javier
Relaxació magnètica
Magnetisme
Efecte túnel
Matèria condensada
Anisotropia
Magnetic relaxation
Magnetism
Tunneling (Physics)
Condensed matter
Anisotropy
title_short Quantum tunneling of magnetization in single domain particles
title_full Quantum tunneling of magnetization in single domain particles
title_fullStr Quantum tunneling of magnetization in single domain particles
title_full_unstemmed Quantum tunneling of magnetization in single domain particles
title_sort Quantum tunneling of magnetization in single domain particles
dc.creator.none.fl_str_mv Tejada Palacios, Javier
Balcells i Argemí, Lluís
Linderoth, S. (Soren)
Perzynski, R.
Rigau, B.
Barbara, B.
Bacri, J. C. (Jean Claude)
author Tejada Palacios, Javier
author_facet Tejada Palacios, Javier
Balcells i Argemí, Lluís
Linderoth, S. (Soren)
Perzynski, R.
Rigau, B.
Barbara, B.
Bacri, J. C. (Jean Claude)
author_role author
author2 Balcells i Argemí, Lluís
Linderoth, S. (Soren)
Perzynski, R.
Rigau, B.
Barbara, B.
Bacri, J. C. (Jean Claude)
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Relaxació magnètica
Magnetisme
Efecte túnel
Matèria condensada
Anisotropia
Magnetic relaxation
Magnetism
Tunneling (Physics)
Condensed matter
Anisotropy
topic Relaxació magnètica
Magnetisme
Efecte túnel
Matèria condensada
Anisotropia
Magnetic relaxation
Magnetism
Tunneling (Physics)
Condensed matter
Anisotropy
description We present a study of the magnetic relaxation of several ferrofluids composed of particles of about 40 Å in diameter (Fe3O4FeC, CoFe2O4). Our key observation is a nonthermal character of the relaxation below 3 K for the CoFe2O4 ferrofluid and below 1 K for the FeC ferrofluid. The crossover temperature from thermal to nonthermal (quantum) regime is in accordance with theoretical suggestions of macroscopic quantum tunneling of magnetization in single doma in particles
publishDate 1993
dc.date.none.fl_str_mv 1993
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/22092
url https://hdl.handle.net/2445/22092
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document proporcionada per AIP i http://dx.doi.org/10.1063/1.352445
Journal of Applied Physics, 1993, vol. 73, núm. 10, p. 6952-6954
http://dx.doi.org/10.1063/1.352445
dc.rights.none.fl_str_mv (c) American Institute of Physics, 1993
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Institute of Physics, 1993
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 3 p.
application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869407618158559232
score 15,81155

Similares en LA Referencia