Electronic Fine Structure in the Electron-Hole Plasma in SrB6

Autores
Rodriguez, Carlos Osvaldo; Weht, Ruben Oscar; Pickett, W. E.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Electron-hole mixing-induced fine structure in alkaline earth hexaborides leads to lower energy (temperature) scales, and thus a stronger tendency toward an excitonic instability than in their doped counterparts (viz. Ca 1 − x La x B 6 , x ≈ 0.005 \) , which are high-Curie-temperature, small-moment ferromagnets. Comparison of Fermi surfaces and spectral distributions with de Haas–van Alphen, optical, transport, and tunneling data indicates that SrB 6 remains a fermionic semimetal down to (at least) 5 K, rather than forming an excitonic condensate. For the doped system the Curie temperature is higher than the degeneracy temperature.
Fil: Rodriguez, Carlos Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Fil: Weht, Ruben Oscar. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pickett, W. E.. University of California; Estados Unidos
Materia
first principles
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/71729
Acceder
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spelling Electronic Fine Structure in the Electron-Hole Plasma in SrB6Rodriguez, Carlos OsvaldoWeht, Ruben OscarPickett, W. E.first principleshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Electron-hole mixing-induced fine structure in alkaline earth hexaborides leads to lower energy (temperature) scales, and thus a stronger tendency toward an excitonic instability than in their doped counterparts (viz. Ca 1 − x La x B 6 , x ≈ 0.005 \) , which are high-Curie-temperature, small-moment ferromagnets. Comparison of Fermi surfaces and spectral distributions with de Haas–van Alphen, optical, transport, and tunneling data indicates that SrB 6 remains a fermionic semimetal down to (at least) 5 K, rather than forming an excitonic condensate. For the doped system the Curie temperature is higher than the degeneracy temperature.Fil: Rodriguez, Carlos Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; ArgentinaFil: Weht, Ruben Oscar. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pickett, W. E.. University of California; Estados UnidosAmerican Physical Society2000-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/71729Rodriguez, Carlos Osvaldo; Weht, Ruben Oscar; Pickett, W. E.; Electronic Fine Structure in the Electron-Hole Plasma in SrB6; American Physical Society; Physical Review Letters; 84; 7-2000; 3903-39070031-9007CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.84.3903info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.84.3903info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:54:19Zoai:ri.conicet.gov.ar:11336/71729instacron: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:34982025-11-12 09:54:19.874CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electronic Fine Structure in the Electron-Hole Plasma in SrB6
title Electronic Fine Structure in the Electron-Hole Plasma in SrB6
spellingShingle Electronic Fine Structure in the Electron-Hole Plasma in SrB6
Rodriguez, Carlos Osvaldo
first principles
title_short Electronic Fine Structure in the Electron-Hole Plasma in SrB6
title_full Electronic Fine Structure in the Electron-Hole Plasma in SrB6
title_fullStr Electronic Fine Structure in the Electron-Hole Plasma in SrB6
title_full_unstemmed Electronic Fine Structure in the Electron-Hole Plasma in SrB6
title_sort Electronic Fine Structure in the Electron-Hole Plasma in SrB6
dc.creator.none.fl_str_mv Rodriguez, Carlos Osvaldo
Weht, Ruben Oscar
Pickett, W. E.
author Rodriguez, Carlos Osvaldo
author_facet Rodriguez, Carlos Osvaldo
Weht, Ruben Oscar
Pickett, W. E.
author_role author
author2 Weht, Ruben Oscar
Pickett, W. E.
author2_role author
author
dc.subject.none.fl_str_mv first principles
topic first principles
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Electron-hole mixing-induced fine structure in alkaline earth hexaborides leads to lower energy (temperature) scales, and thus a stronger tendency toward an excitonic instability than in their doped counterparts (viz. Ca 1 − x La x B 6 , x ≈ 0.005 \) , which are high-Curie-temperature, small-moment ferromagnets. Comparison of Fermi surfaces and spectral distributions with de Haas–van Alphen, optical, transport, and tunneling data indicates that SrB 6 remains a fermionic semimetal down to (at least) 5 K, rather than forming an excitonic condensate. For the doped system the Curie temperature is higher than the degeneracy temperature.
Fil: Rodriguez, Carlos Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Fil: Weht, Ruben Oscar. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pickett, W. E.. University of California; Estados Unidos
description Electron-hole mixing-induced fine structure in alkaline earth hexaborides leads to lower energy (temperature) scales, and thus a stronger tendency toward an excitonic instability than in their doped counterparts (viz. Ca 1 − x La x B 6 , x ≈ 0.005 \) , which are high-Curie-temperature, small-moment ferromagnets. Comparison of Fermi surfaces and spectral distributions with de Haas–van Alphen, optical, transport, and tunneling data indicates that SrB 6 remains a fermionic semimetal down to (at least) 5 K, rather than forming an excitonic condensate. For the doped system the Curie temperature is higher than the degeneracy temperature.
publishDate 2000
dc.date.none.fl_str_mv 2000-07
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/11336/71729
Rodriguez, Carlos Osvaldo; Weht, Ruben Oscar; Pickett, W. E.; Electronic Fine Structure in the Electron-Hole Plasma in SrB6; American Physical Society; Physical Review Letters; 84; 7-2000; 3903-3907
0031-9007
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71729
identifier_str_mv Rodriguez, Carlos Osvaldo; Weht, Ruben Oscar; Pickett, W. E.; Electronic Fine Structure in the Electron-Hole Plasma in SrB6; American Physical Society; Physical Review Letters; 84; 7-2000; 3903-3907
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/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.84.3903
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.84.3903
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/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
_version_ 1848598253195493376
score 12.976206

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