| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1481 - C8-1482 | |
| DOI | https://doi.org/10.1051/jphyscol:19888681 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1481-C8-1482
DOI: 10.1051/jphyscol:19888681
Institute for Low Temperature Physics and Engineering, Ukr. SSR, Academy of Sciences, 310164 Kharkov, Lenin .Avenue, 47, U.S.S.R.
J. Phys. Colloques 49 (1988) C8-1481-C8-1482
DOI: 10.1051/jphyscol:19888681
EXCITON SCATTERING ON SPIN WAVES IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNET
V. V. Eremenko, V. V. Shapiro et I. S. KachurInstitute for Low Temperature Physics and Engineering, Ukr. SSR, Academy of Sciences, 310164 Kharkov, Lenin .Avenue, 47, U.S.S.R.
Abstract
Exciton absorption bandwidths have been measured in a quasi-one-dimensional antiferromagnet CsMnCl3.2 H2O and a three-dimensional MnF2 in magnetic fields oriented along crystal "easy" axes. In one-dimensional antiferromagnets exciton-magnon interaction is shown to result in a considerable broadening of exciton bands in the vicinity of the critical field of the spin-flop transition.