Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4

Autores
Guitarra, S.R.; Caneiro, Alberto; Niebieskikwiat, Dario Gabriel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the physical properties of the antiferromagnetic spin ladder CaV2O4 (CVO) and the Y-doped related compound Ca0.9Y0.1V2O4. In the latter, X-ray diffraction demonstrates the segregation of a small amount of a vanadium–perovskite impurity phase, leading to the formation of V vacancies within the main CVO-type structure. The 1D character of this calcium–vanadite enhances the influence of the vacancies on the electric and magnetic properties of Ca0.9Y0.1V2O4. Electrical transport is characterized by a variable-range hopping mechanism determined by the charging energy of nm-sized segments of V chains delimited by V vacancies, i.e. a Coulomb gap is formed at the Fermi level. These vacancies also locally affect the magnetic correlations, breaking the long-range AFM order observed in CaV2O4 and producing exchange bias when the Y-doped sample is cooled with an applied magnetic field.
Fil: Guitarra, S.R.. Universidad San Francisco de Quito; Ecuador
Fil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Niebieskikwiat, Dario Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad San Francisco de Quito; Ecuador
Materia
Spin Ladders
Variable Range-Hopping
Disordered Solids
Defect-Induced Magnetic Moments
Exchange Bias
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/3488
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/3488
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4Guitarra, S.R.Caneiro, AlbertoNiebieskikwiat, Dario GabrielSpin LaddersVariable Range-HoppingDisordered SolidsDefect-Induced Magnetic MomentsExchange Biashttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the physical properties of the antiferromagnetic spin ladder CaV2O4 (CVO) and the Y-doped related compound Ca0.9Y0.1V2O4. In the latter, X-ray diffraction demonstrates the segregation of a small amount of a vanadium–perovskite impurity phase, leading to the formation of V vacancies within the main CVO-type structure. The 1D character of this calcium–vanadite enhances the influence of the vacancies on the electric and magnetic properties of Ca0.9Y0.1V2O4. Electrical transport is characterized by a variable-range hopping mechanism determined by the charging energy of nm-sized segments of V chains delimited by V vacancies, i.e. a Coulomb gap is formed at the Fermi level. These vacancies also locally affect the magnetic correlations, breaking the long-range AFM order observed in CaV2O4 and producing exchange bias when the Y-doped sample is cooled with an applied magnetic field.Fil: Guitarra, S.R.. Universidad San Francisco de Quito; EcuadorFil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Niebieskikwiat, Dario Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad San Francisco de Quito; EcuadorElsevier Science2015-05-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/3488Guitarra, S.R.; Caneiro, Alberto; Niebieskikwiat, Dario Gabriel; Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4; Elsevier Science; Journal Of Magnetism And Magnetic Materials; 392; 2015; 11-5-2015; 63-670304-8853enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304885315301372info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmmm.2015.05.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:30:25Zoai:ri.conicet.gov.ar:11336/3488instacron: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:34982025-10-15 15:30:25.826CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
title Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
spellingShingle Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
Guitarra, S.R.
Spin Ladders
Variable Range-Hopping
Disordered Solids
Defect-Induced Magnetic Moments
Exchange Bias
title_short Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
title_full Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
title_fullStr Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
title_full_unstemmed Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
title_sort Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4
dc.creator.none.fl_str_mv Guitarra, S.R.
Caneiro, Alberto
Niebieskikwiat, Dario Gabriel
author Guitarra, S.R.
author_facet Guitarra, S.R.
Caneiro, Alberto
Niebieskikwiat, Dario Gabriel
author_role author
author2 Caneiro, Alberto
Niebieskikwiat, Dario Gabriel
author2_role author
author
dc.subject.none.fl_str_mv Spin Ladders
Variable Range-Hopping
Disordered Solids
Defect-Induced Magnetic Moments
Exchange Bias
topic Spin Ladders
Variable Range-Hopping
Disordered Solids
Defect-Induced Magnetic Moments
Exchange Bias
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the physical properties of the antiferromagnetic spin ladder CaV2O4 (CVO) and the Y-doped related compound Ca0.9Y0.1V2O4. In the latter, X-ray diffraction demonstrates the segregation of a small amount of a vanadium–perovskite impurity phase, leading to the formation of V vacancies within the main CVO-type structure. The 1D character of this calcium–vanadite enhances the influence of the vacancies on the electric and magnetic properties of Ca0.9Y0.1V2O4. Electrical transport is characterized by a variable-range hopping mechanism determined by the charging energy of nm-sized segments of V chains delimited by V vacancies, i.e. a Coulomb gap is formed at the Fermi level. These vacancies also locally affect the magnetic correlations, breaking the long-range AFM order observed in CaV2O4 and producing exchange bias when the Y-doped sample is cooled with an applied magnetic field.
Fil: Guitarra, S.R.. Universidad San Francisco de Quito; Ecuador
Fil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Niebieskikwiat, Dario Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad San Francisco de Quito; Ecuador
description We study the physical properties of the antiferromagnetic spin ladder CaV2O4 (CVO) and the Y-doped related compound Ca0.9Y0.1V2O4. In the latter, X-ray diffraction demonstrates the segregation of a small amount of a vanadium–perovskite impurity phase, leading to the formation of V vacancies within the main CVO-type structure. The 1D character of this calcium–vanadite enhances the influence of the vacancies on the electric and magnetic properties of Ca0.9Y0.1V2O4. Electrical transport is characterized by a variable-range hopping mechanism determined by the charging energy of nm-sized segments of V chains delimited by V vacancies, i.e. a Coulomb gap is formed at the Fermi level. These vacancies also locally affect the magnetic correlations, breaking the long-range AFM order observed in CaV2O4 and producing exchange bias when the Y-doped sample is cooled with an applied magnetic field.
publishDate 2015
dc.date.none.fl_str_mv 2015-05-11
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/11336/3488
Guitarra, S.R.; Caneiro, Alberto; Niebieskikwiat, Dario Gabriel; Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4; Elsevier Science; Journal Of Magnetism And Magnetic Materials; 392; 2015; 11-5-2015; 63-67
0304-8853
url http://hdl.handle.net/11336/3488
identifier_str_mv Guitarra, S.R.; Caneiro, Alberto; Niebieskikwiat, Dario Gabriel; Disorder effects in the S1⁄41 antiferromagnetic spin ladder CaV2O4; Elsevier Science; Journal Of Magnetism And Magnetic Materials; 392; 2015; 11-5-2015; 63-67
0304-8853
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304885315301372
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmmm.2015.05.012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.221938

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