| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-913 - C8-914 | |
| DOI | https://doi.org/10.1051/jphyscol:19888415 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-913-C8-914
DOI: 10.1051/jphyscol:19888415
Institute for Low Temperature Physics and Engineering, Ukr. SSR Academy of Sciences, 310164, Kharkov, U.S.S.R.
J. Phys. Colloques 49 (1988) C8-913-C8-914
DOI: 10.1051/jphyscol:19888415
EXCHANGE SPIN WAVES AND THEIR MANIFESTATION IN TWO-MAGNON ABSORPTION AND RAMAN SCATTERING
V. V. Eremenko, S. A. Zvyagin, Yu. G. Pashkevich, V. V. Pishko, V. L. Sobolev et S. A. FedorovInstitute for Low Temperature Physics and Engineering, Ukr. SSR Academy of Sciences, 310164, Kharkov, U.S.S.R.
Abstract
Spin waves whose activation energy in exchange approximation remains finite and is defined by exchange magnetic interaction integrals are called exchange spin waves (ESW). In antiferromagnets with n magnetic sublattices, collinear in exchange approximation the SW spectrum exhibits n - 2 exchange branches. Peculiarities of the ESW manifestation in the two-magnon absorption (TMA) and Raman scattering (RS) are traced in rhombic antiferromagnets.