A Simple Localized-Itinerant Model for <math>PrAl3</math>: Crystal Field and Exchange Effects

Nota de FísicaPublicado

A Simple Localized-Itinerant Model for $<math>PrAl_{3}</math>$ : Crystal Field and Exchange Effects

P.J. Von Ranke; L. Palermo; X. A. Silva

1990

Autores: P.J. Von Ranke; L. Palermo; X. A. Silva
Tipo: Nota de Física
Status: Publicado
Data de publicação: 1990
Descrição: We present a simple magnetic model for <math>PrAl_{3}\,\!</math>. The effects of crystal field are treated using a reduced set of levels and the corresponding wave functions are extracted from the actual crystal field levels of <math>Pr^{+3}\,\!</math> in a hexagonal symmetry. The exchange between <math>4f\,\!</math>- and conduction electrons are dealt within a molecular field approximation. An analytical magnetic state equation is derived and the magnetic behaviour discussed. The parameters of the model are estimated from a fitting of the inverse susceptibility of <math>PrAl_{3}\,\!</math> given in the literature.
Ano: 1990
Número: CBPF-NF-033/90
Vínculo com tese: Não
Vínculo com bolsa: Não