Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition

Autores
Piamonteze, Cinthia; Groot, F. M. F. de; Tolentino, Hélio C. N.; Ramos, A. Y.; Massa, Néstor Emilio; Alonso, José Antonio; Martínez Lope, María Jesús
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report on a Ni L2,3 edge x-ray absorption spectroscopy study in RNiO₃ perovskites. These compounds exhibit a metal-to-insulator (MI) transition as temperature decreases. The L₃ edge presents a clear splitting in the insulating state, associated to a less hybridized ground state. Using charge transfer multiplet calculations, we establish the importance of the crystal field and 3d spin-orbit coupling to create a mixed-spin ground state. We explain the MI transition in RNiO₃ perovskites in terms of modifications in the Ni³⁺ crystal field splitting that induces a spin transition from an essentially low-spin to a mixed-spin state.
Facultad de Ciencias Exactas
Centro de Química Inorgánica
Materia
Ciencias Exactas
Física
Química
spectroscopy
x-ray absorption
crystal field
3d spin-orbit coupling
perovskites
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/126591
Acceder
id SEDICI_35755b0d9f14ce33582717d276484a07
oai_identifier_str oai:sedici.unlp.edu.ar:10915/126591
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transitionPiamonteze, CinthiaGroot, F. M. F. deTolentino, Hélio C. N.Ramos, A. Y.Massa, Néstor EmilioAlonso, José AntonioMartínez Lope, María JesúsCiencias ExactasFísicaQuímicaspectroscopyx-ray absorptioncrystal field3d spin-orbit couplingperovskitesWe report on a Ni L<sub>2,3</sub> edge x-ray absorption spectroscopy study in RNiO₃ perovskites. These compounds exhibit a metal-to-insulator (MI) transition as temperature decreases. The L₃ edge presents a clear splitting in the insulating state, associated to a less hybridized ground state. Using charge transfer multiplet calculations, we establish the importance of the crystal field and 3d spin-orbit coupling to create a mixed-spin ground state. We explain the MI transition in RNiO₃ perovskites in terms of modifications in the Ni³⁺ crystal field splitting that induces a spin transition from an essentially low-spin to a mixed-spin state.Facultad de Ciencias ExactasCentro de Química Inorgánica2005-01info: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/10915/126591enginfo:eu-repo/semantics/altIdentifier/issn/1098-0121info:eu-repo/semantics/altIdentifier/issn/1550-235Xinfo:eu-repo/semantics/altIdentifier/arxiv/cond-mat/0412276info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.71.020406info: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:UNLP2025-10-22T17:11:16Zoai:sedici.unlp.edu.ar:10915/126591Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:11:17.21SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
title Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
spellingShingle Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
Piamonteze, Cinthia
Ciencias Exactas
Física
Química
spectroscopy
x-ray absorption
crystal field
3d spin-orbit coupling
perovskites
title_short Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
title_full Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
title_fullStr Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
title_full_unstemmed Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
title_sort Spin-orbit-induced mixed-spin ground state in RNiO₃ perovskites probed by x-ray absorption spectroscopy: Insight into the metal-to-insulator transition
dc.creator.none.fl_str_mv Piamonteze, Cinthia
Groot, F. M. F. de
Tolentino, Hélio C. N.
Ramos, A. Y.
Massa, Néstor Emilio
Alonso, José Antonio
Martínez Lope, María Jesús
author Piamonteze, Cinthia
author_facet Piamonteze, Cinthia
Groot, F. M. F. de
Tolentino, Hélio C. N.
Ramos, A. Y.
Massa, Néstor Emilio
Alonso, José Antonio
Martínez Lope, María Jesús
author_role author
author2 Groot, F. M. F. de
Tolentino, Hélio C. N.
Ramos, A. Y.
Massa, Néstor Emilio
Alonso, José Antonio
Martínez Lope, María Jesús
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Química
spectroscopy
x-ray absorption
crystal field
3d spin-orbit coupling
perovskites
topic Ciencias Exactas
Física
Química
spectroscopy
x-ray absorption
crystal field
3d spin-orbit coupling
perovskites
dc.description.none.fl_txt_mv We report on a Ni L<sub>2,3</sub> edge x-ray absorption spectroscopy study in RNiO₃ perovskites. These compounds exhibit a metal-to-insulator (MI) transition as temperature decreases. The L₃ edge presents a clear splitting in the insulating state, associated to a less hybridized ground state. Using charge transfer multiplet calculations, we establish the importance of the crystal field and 3d spin-orbit coupling to create a mixed-spin ground state. We explain the MI transition in RNiO₃ perovskites in terms of modifications in the Ni³⁺ crystal field splitting that induces a spin transition from an essentially low-spin to a mixed-spin state.
Facultad de Ciencias Exactas
Centro de Química Inorgánica
description We report on a Ni L<sub>2,3</sub> edge x-ray absorption spectroscopy study in RNiO₃ perovskites. These compounds exhibit a metal-to-insulator (MI) transition as temperature decreases. The L₃ edge presents a clear splitting in the insulating state, associated to a less hybridized ground state. Using charge transfer multiplet calculations, we establish the importance of the crystal field and 3d spin-orbit coupling to create a mixed-spin ground state. We explain the MI transition in RNiO₃ perovskites in terms of modifications in the Ni³⁺ crystal field splitting that induces a spin transition from an essentially low-spin to a mixed-spin state.
publishDate 2005
dc.date.none.fl_str_mv 2005-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/126591
url http://sedici.unlp.edu.ar/handle/10915/126591
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1098-0121
info:eu-repo/semantics/altIdentifier/issn/1550-235X
info:eu-repo/semantics/altIdentifier/arxiv/cond-mat/0412276
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.71.020406
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
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution 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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score 12.982451

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