Random Bond XXZ Chains with Modulated Couplings

Autores
Cabra, Daniel Carlos; De Martino, A.; Grynberg, Marcelo Daniel; Peysson, S.; Pujol, P.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The magnetization behavior of q -periodic antiferromagnetic spin- 1 / 2 Heisenberg chains under uniform magnetic fields is investigated in a background of disorder exchange distributions. By means of both real space decimation procedures and numerical diagonalizations in XX chains, it is found that for binary disorder the magnetization exhibits wide plateaus at values of 1 + 2 ( p − 1 ) / q , where p is the disorder strength. In contrast, no spin gaps are observed in the presence of continuous exchange distributions. We also study the magnetic susceptibility at low magnetic fields.
Fil: Cabra, Daniel Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de Lomas de Zamora; Argentina
Fil: De Martino, A.. Ecole Normale Supérieure de Lyon; Francia
Fil: Grynberg, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Peysson, S.. Ecole Normale Supérieure de Lyon; Francia
Fil: Pujol, P.. Ecole Normale Supérieure de Lyon; Francia
Materia
decimation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/98446
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Random Bond XXZ Chains with Modulated CouplingsCabra, Daniel CarlosDe Martino, A.Grynberg, Marcelo DanielPeysson, S.Pujol, P.decimationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The magnetization behavior of q -periodic antiferromagnetic spin- 1 / 2 Heisenberg chains under uniform magnetic fields is investigated in a background of disorder exchange distributions. By means of both real space decimation procedures and numerical diagonalizations in XX chains, it is found that for binary disorder the magnetization exhibits wide plateaus at values of 1 + 2 ( p − 1 ) / q , where p is the disorder strength. In contrast, no spin gaps are observed in the presence of continuous exchange distributions. We also study the magnetic susceptibility at low magnetic fields.Fil: Cabra, Daniel Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de Lomas de Zamora; ArgentinaFil: De Martino, A.. Ecole Normale Supérieure de Lyon; FranciaFil: Grynberg, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Peysson, S.. Ecole Normale Supérieure de Lyon; FranciaFil: Pujol, P.. Ecole Normale Supérieure de Lyon; FranciaAmerican Physical Society2000-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98446Cabra, Daniel Carlos; De Martino, A.; Grynberg, Marcelo Daniel; Peysson, S.; Pujol, P.; Random Bond XXZ Chains with Modulated Couplings; American Physical Society; Physical Review Letters; 85; 22; 12-2000; 4791-47940031-9007CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.aps.org/abstract/PRL/v85/p4791info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.85.4791info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.85.4791info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:32:20Zoai:ri.conicet.gov.ar:11336/98446instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:32:20.367CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Random Bond XXZ Chains with Modulated Couplings
title Random Bond XXZ Chains with Modulated Couplings
spellingShingle Random Bond XXZ Chains with Modulated Couplings
Cabra, Daniel Carlos
decimation
title_short Random Bond XXZ Chains with Modulated Couplings
title_full Random Bond XXZ Chains with Modulated Couplings
title_fullStr Random Bond XXZ Chains with Modulated Couplings
title_full_unstemmed Random Bond XXZ Chains with Modulated Couplings
title_sort Random Bond XXZ Chains with Modulated Couplings
dc.creator.none.fl_str_mv Cabra, Daniel Carlos
De Martino, A.
Grynberg, Marcelo Daniel
Peysson, S.
Pujol, P.
author Cabra, Daniel Carlos
author_facet Cabra, Daniel Carlos
De Martino, A.
Grynberg, Marcelo Daniel
Peysson, S.
Pujol, P.
author_role author
author2 De Martino, A.
Grynberg, Marcelo Daniel
Peysson, S.
Pujol, P.
author2_role author
author
author
author
dc.subject.none.fl_str_mv decimation
topic decimation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The magnetization behavior of q -periodic antiferromagnetic spin- 1 / 2 Heisenberg chains under uniform magnetic fields is investigated in a background of disorder exchange distributions. By means of both real space decimation procedures and numerical diagonalizations in XX chains, it is found that for binary disorder the magnetization exhibits wide plateaus at values of 1 + 2 ( p − 1 ) / q , where p is the disorder strength. In contrast, no spin gaps are observed in the presence of continuous exchange distributions. We also study the magnetic susceptibility at low magnetic fields.
Fil: Cabra, Daniel Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de Lomas de Zamora; Argentina
Fil: De Martino, A.. Ecole Normale Supérieure de Lyon; Francia
Fil: Grynberg, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Peysson, S.. Ecole Normale Supérieure de Lyon; Francia
Fil: Pujol, P.. Ecole Normale Supérieure de Lyon; Francia
description The magnetization behavior of q -periodic antiferromagnetic spin- 1 / 2 Heisenberg chains under uniform magnetic fields is investigated in a background of disorder exchange distributions. By means of both real space decimation procedures and numerical diagonalizations in XX chains, it is found that for binary disorder the magnetization exhibits wide plateaus at values of 1 + 2 ( p − 1 ) / q , where p is the disorder strength. In contrast, no spin gaps are observed in the presence of continuous exchange distributions. We also study the magnetic susceptibility at low magnetic fields.
publishDate 2000
dc.date.none.fl_str_mv 2000-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/98446
Cabra, Daniel Carlos; De Martino, A.; Grynberg, Marcelo Daniel; Peysson, S.; Pujol, P.; Random Bond XXZ Chains with Modulated Couplings; American Physical Society; Physical Review Letters; 85; 22; 12-2000; 4791-4794
0031-9007
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98446
identifier_str_mv Cabra, Daniel Carlos; De Martino, A.; Grynberg, Marcelo Daniel; Peysson, S.; Pujol, P.; Random Bond XXZ Chains with Modulated Couplings; American Physical Society; Physical Review Letters; 85; 22; 12-2000; 4791-4794
0031-9007
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.aps.org/abstract/PRL/v85/p4791
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.85.4791
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.85.4791
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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