| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1021 - C8-1022 | |
| DOI | https://doi.org/10.1051/jphyscol:19888465 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1021-C8-1022
DOI: 10.1051/jphyscol:19888465
1 Physikalisches Institut Universität Würzburg, D-8700 Würzburg, F.R.G.
2 Department of Physics, University of Missouri-Kansas City, Kansas City, Missouri 64110, U.S.A.
3 Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, U.S.A.
J. Phys. Colloques 49 (1988) C8-1021-C8-1022
DOI: 10.1051/jphyscol:19888465
NUMERICAL STUDIES OF THE COLLECTIVE EXCITATIONS OF Rb2MnxCr1-xCl4 MIXED CRYSTALS
D. Sieger1, W. Y. Ching2, D. L. Huber3 et R. Geick11 Physikalisches Institut Universität Würzburg, D-8700 Würzburg, F.R.G.
2 Department of Physics, University of Missouri-Kansas City, Kansas City, Missouri 64110, U.S.A.
3 Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, U.S.A.
Abstract
The spin dynamics of the random quasi-two-dimensional magnetic system Rb2MnxCr1-xCl4 has been studied by a computer simulation employing the equation-of-motion method. The resulting S (q, w) data correspond qualitatively to the experimentally observed excitation frequencies of wavelike magnons and cluster modes. The disorder effects can be related shown to the classical equilibrium configuration.