Crystal field in RPdIn (R=Ce, Pr, Nd) compounds

The RPdIn compounds (R = rare earth) crystallise in the hexagonal ZrNiAl-type crystal structure. The compounds from this family exhibit a great variety of interesting magnetic properties including heavy fermion behaviour. In order to get a deeper insight into nature of magnetism of RPdIn with light...

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Bibliographic Details
Published in:Solid state communications 2009-10, Vol.149 (39), p.1596-1599
Main Authors: Gondek, Ł., Czub, J., Szytuła, A., Izaola, Z., Kemner, E.
Format: Article
Language:English
Subjects:
A. Magnetically ordered materials
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Crystal and ligand fields
Crystal-field theory and spin hamiltonians
D. Crystal and ligand fields
D. Heavy fermions
E. Neutron scattering
Electron states
Exact sciences and technology
General theory and models of magnetic ordering
Level splitting and interactions
Magnetic properties and materials
Physics
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Summary:The RPdIn compounds (R = rare earth) crystallise in the hexagonal ZrNiAl-type crystal structure. The compounds from this family exhibit a great variety of interesting magnetic properties including heavy fermion behaviour. In order to get a deeper insight into nature of magnetism of RPdIn with light rare earths elements (La–Nd) an inelastic neutron scattering experiment was performed. For compounds with Pr and Nd excitations due to crystal field were clearly distinguished. On the other hand, interesting behaviour for the CePdIn sample was observed. The sample exhibits no signs of crystal field excitations, likely due to highly delocalised Ce 4f states leading to its heavy fermion behaviour.
ISSN:0038-1098
1879-2766
DOI:10.1016/j.ssc.2009.06.042