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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/126591
Ver los metadatos del registro completo
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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:UNLP2025-09-29T11:30:23Zoai: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:13292025-09-29 11:30:23.335SEDICI (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 |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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