Among the Cerium compounds, the heavier monochalcogenides CeY (Y = S,Se,Te) of cerium provide a class of compounds which together with the heavier monopnictides CeX (X = N,P,As,Sb,Bi) exhibit extremely interesting physical properties. The hybridization of the partially delocalized f-electrons seems to be responsible for the unusual properties, in particular the magnetic ones which show great chemical sensitivity. As compared to the monopnictides, the monochalcogenides have an additional anion p-electron which shifts the Fermi energy into the p-region of the Cerium 5d-derived density of states, and which should affect the hybridization function of the electrons in the conduction band. In this contribution we analyze the 4f-hybridization function and the crystal-field splittings of the compounds under study. © 2006 Elsevier B.V. All rights reserved.
Documento: | Artículo |
Título: | Hybridization functions of intermetallic Ce compounds with group VI elements |
Autor: | Roura-Bas, P.; Vildosola, V.; Llois, A.M. |
Filiación: | Departamento de Física, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Av. Gral. Paz 1499, San Martín, 1650 Buenos Aires, Argentina Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina |
Palabras clave: | Crystal fields; Highly correlated systems; p-electron; Band structure; Electrons; Fermi level; Intermetallics; Conduction band; Density of states; Monochalcogenides; Cerium compounds |
Año: | 2006 |
Volumen: | 384 |
Número: | 1-2 |
Página de inicio: | 202 |
Página de fin: | 204 |
DOI: | http://dx.doi.org/10.1016/j.physb.2006.05.229 |
Título revista: | Physica B: Condensed Matter |
Título revista abreviado: | Phys B Condens Matter |
ISSN: | 09214526 |
CODEN: | PHYBE |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v384_n1-2_p202_RouraBas |