Spin-wave theory of magnetocrystalline anistropy in terbium and dysprosium
- 1 June 1969
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 2 (6) , 1016-1022
- https://doi.org/10.1088/0022-3719/2/6/312
Abstract
Magnetocrystalline anisotropy arising from a crystal field of magnitude comparable with exchange has been studied using a spin-wave theory. The `power law' temperature dependence of the anisotropy coefficients is modified at low temperatures, a result which is in agreement with the measurements of Rhyne and Clark. Values of crystal-field parameters deduced by comparison with experiment are a factor 2-3 larger than the results of screened point charge calculations.Keywords
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