| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1043 - C8-1044 | |
| DOI | https://doi.org/10.1051/jphyscol:19888476 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1043-C8-1044
DOI: 10.1051/jphyscol:19888476
1 Dip. di Fisica, Roma II, Via O. Raimondo, 00173 Roma, Italy.
2 Physique des Solides, 91405 Orsay, France
J. Phys. Colloques 49 (1988) C8-1043-C8-1044
DOI: 10.1051/jphyscol:19888476
AGING EFFECTS ON THE RELAXATION OF TORQUE AND MAGNETIZATION IN A CANONICAL SPIN GLASS
C. Giovannella1, L. Fruchter2 et I. A. Campbell21 Dip. di Fisica, Roma II, Via O. Raimondo, 00173 Roma, Italy.
2 Physique des Solides, 91405 Orsay, France
Abstract
Using a capacity cell torquemeter we have investigated the aging effects on the form of the torque relaxation in a CuMn 5 % spin glass. The data show that in moderate fields the spin glass evolves strongly with waiting time after field change if prepared by zero field cooling (ZFC) followed by an applied field, or if measurements are performed after some other variation of the magnetic field strength. After cooling in constant field (FC) the relaxation rate does not depend on the waiting time after cooling.