Crystalline electric field in RNiSb compounds investigated by inelastic neutron scattering

The crystalline electric field (CEF) of RNiSb ( R= Ce , Pr, Nd, Tb, Dy, Ho, Er and ( Er 0.1 Y 0.9) ) has been investigated by inelastic neutron scattering measurements and compared with the theoretical CEF-simulations. The determined CEF level schemes explain the different orientations of the magnet...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 1999-11, Vol.271 (1), p.294-303
Main Authors: Karla, I., Pierre, J., Murani, A.P., Neumann, M.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Crystal and ligand fields
Crystal field
Electron states
Electronic conduction in metals and alloys
Electronic transport in condensed matter
Exact sciences and technology
Level splitting and interactions
Magnetic resistivity
Neutron scattering
Physics
Rare-earth compounds
Scattering mechanisms and kondo effect
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Summary:The crystalline electric field (CEF) of RNiSb ( R= Ce , Pr, Nd, Tb, Dy, Ho, Er and ( Er 0.1 Y 0.9) ) has been investigated by inelastic neutron scattering measurements and compared with the theoretical CEF-simulations. The determined CEF level schemes explain the different orientations of the magnetic moments between the different compounds in this series; they are directed along a fourfold crystal axis in DyNiSb and ErNiSb, along a twofold one in TbNiSb and HoNiSb with an additional moment rotation in TbNiSb below Neel temperature. The CEF model was applied to analyse the electrical resistivity. In CeNiSb, the Kondo behaviour is reconfirmed, and the ground state of PrNiSb is shown to be a non-magnetic singlet.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(99)00196-9