J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988Proceedings of the International Conference on Magnetism
|Page(s)||C8-351 - C8-352|
J. Phys. Colloques 49 (1988) C8-351-C8-352
SPIN WAVES IN THE MAGNETIC STRUCTURES OF HOLMIUMJ. Jensen
Physics Laboratory, H. C. Oersted Institute DK-2100 Copenhagen, Denmark
The MF-RPA model for Ho90Tb10, developed previously, is utilized for calculating the c-axis spin-wave energies of Ho. The low-temperature spin waves in the conical and helical phases agree well with the experiments of Stringfellow et al. At higher temperatures the calculations indicate that the hexagonal anisotropy still has appreciable effects on the spin waves, studied experimentally by Nicklow.