Superposition-model analysis of spin-Hamiltonian parameters forin rare-earth trifluorides
- 1 October 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 24 (7) , 3729-3735
- https://doi.org/10.1103/physrevb.24.3729
Abstract
The spin-Hamiltonian parameters for -doped single crystals of () are analyzed using the linear superposition model of Newman. It is found that the parameters can be adequately described within the framework of the superposition model for values of and being 9 and 14, respectively, provided that one consider small distortions (within ± 3°) of the azimuthal angles of eight ions nearest to in the various hosts due to the presence of the ion. The significance of the success in the application of the superposition model to the analysis of spin-Hamiltonian parameters in isostructural hosts is discussed. It is found that the zero-field splitting is a linear function of the intrinsic parameter for the ion doping the various hosts.
Keywords
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