A Simple Localized-Itinerant Model for PrAl_{3}: Crystal Field and Exchange Effects

• Authors: P. Von Ranke , L. Palermo , X. Da Silva
• Languages of publication: EN

Abstracts

EN

We present a simple magnetic model for PrAl_{3}. 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 Pr^{+3} in a hexagonal symmetry. The exchange between 4f- 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 PrAl_{3} given in the literature.

Keywords

EN

75.10.Dg; 75.30.Cr

Discipline

• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 75.10.Dg: Crystal-field theory and spin Hamiltonians(see also 71.70.Ch Crystal and ligand fields)

• Journal: Acta Physica Polonica A
• Year: 1991
• Volume: 80
• Issue: 4
• Pages: 583-590

Dates

published

1991-10

received

1989-01-17

(unknown)

1991-08-21

Contributors

author

P. Von Ranke

• Instituto de Física UERJ, Rua São Francisco Xavier 524, CEP 20550 - Rio de Janeiro RJ - Brasil

author

L. Palermo

• Instituto de Física UFF, Rua São João Batista s/n - Centro, CEP 24020 - Niteroi RJ - Brasil

author

X. Da Silva

• Centro Brasileiro de Pesquisas Física - CBPF/CNPq, Rua Dr. Xavier Sigaud 150, 22290 - Rio de Janeiro, RJ - Brasil

Identifiers

DOI

10.12693/APhysPolA.80.583