| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1253 - C8-1254 | |
| DOI | https://doi.org/10.1051/jphyscol:19888569 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1253-C8-1254
DOI: 10.1051/jphyscol:19888569
1 Physikalisches Institut, Universität Würzburg, Am Hubland, D-8700 Würzburg F.R.G.
2 L.L.B., C.E.N. Saclay, 91191 Gif-sur-Yvette, France and I.N.F.P., Kernforschungszentrum, D-7500 Karlsruhe, F.R.G.
3 University of Marburg, Lahnberge, D-3550 Marburg, F.R.G.
J. Phys. Colloques 49 (1988) C8-1253-C8-1254
DOI: 10.1051/jphyscol:19888569
TEMPERATURE DEPENDENT DISORDERING IN RANDOM ANTIFERROMAGNETIC Rb2Mn0.70 Cr0.30 Cl4
H. Tietze1, D. Sieger1, P. Schweiss2, 3, R. Geick1 et W. Treutmann31 Physikalisches Institut, Universität Würzburg, Am Hubland, D-8700 Würzburg F.R.G.
2 L.L.B., C.E.N. Saclay, 91191 Gif-sur-Yvette, France and I.N.F.P., Kernforschungszentrum, D-7500 Karlsruhe, F.R.G.
3 University of Marburg, Lahnberge, D-3550 Marburg, F.R.G.
Abstract
A random antiferromagnetic sample of the mixed crystal system Rb2MnxCr1-xCl4 (x = 0.70) with competing anisotropies and exchange interactions has been studied by quasi-elastic neutron scattering in the temperature range of 4.2-57 K. A linear temperature dependence of the observed scattering intensities as well as considerably broadened peak shapes have been found, indicating finite correlation lengths and a dynamic disorder of the antiferromagnetic phase. Below T = 11 K the onset of an additional freezing behaviour has been found.