Electronic Fine Structure in the Electron-Hole Plasma in SrB6

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. Ca₁₋ₓ LaₓB₆, x≈0.005\), which are high-Curie-temperature, small-moment ferromagnet...

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Autores principales: Rodríguez, Carlos Osvaldo, Weht, Rubén Oscar, Pickett, W. E.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2000
Materias:
Física
First principles
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/95717
https://ri.conicet.gov.ar/11336/71729
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.84.3903
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-95717
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
First principles
spellingShingle Física
First principles
Rodríguez, Carlos Osvaldo
Weht, Rubén Oscar
Pickett, W. E.
Electronic Fine Structure in the Electron-Hole Plasma in SrB6
topic_facet Física
First principles
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. Ca₁₋ₓ LaₓB₆, 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 SrB₆ 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.
format Articulo
Preprint
author Rodríguez, Carlos Osvaldo
Weht, Rubén Oscar
Pickett, W. E.
author_facet Rodríguez, Carlos Osvaldo
Weht, Rubén Oscar
Pickett, W. E.
author_sort Rodríguez, Carlos Osvaldo
title Electronic Fine Structure in the Electron-Hole Plasma in SrB6
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
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/95717
https://ri.conicet.gov.ar/11336/71729
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.84.3903
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AT wehtrubenoscar electronicfinestructureintheelectronholeplasmainsrb6
AT pickettwe electronicfinestructureintheelectronholeplasmainsrb6
bdutipo_str Repositorios
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