| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1127 - C8-1128 | |
| DOI | https://doi.org/10.1051/jphyscol:19888516 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1127-C8-1128
DOI: 10.1051/jphyscol:19888516
Institut für Experimentalphysik IV, Ruhr-Universität, D4630 Bochum, F.R.G.
J. Phys. Colloques 49 (1988) C8-1127-C8-1128
DOI: 10.1051/jphyscol:19888516
REENTRANCE BEHAVIOUR AND MAGNETIC SHORT RANGE ORDER IN THE SPIN GLASS SYSTEM EuxSr1-xSySe1-y
K. Westerholt et Th. WegmannInstitut für Experimentalphysik IV, Ruhr-Universität, D4630 Bochum, F.R.G.
Abstract
In the system EuSySe1-y the ferromagnetic and the antiferromagnetic phase line cross at a bicritical point y ≈ 0.1. We study the magnetic phase diagrams when substituting Sr for Eu for S-concentrations y close to 0.1. Reentrance behaviour of the spin glass state is only observed on the ferromagnetic side y > 0.1. The dynamical behaviour of ther spin glasses is very similar for y > 0.1 and y <, whereas a diverging nonlinear susceptibility for T → is found on the ferromagnetic side y > 0.1 only.