| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-179 - C8-180 | |
| DOI | https://doi.org/10.1051/jphyscol:1988876 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-179-C8-180
DOI: 10.1051/jphyscol:1988876
1 Instituto de Fisica - UFRGS, Campus do Vale, POB 15051, 91500 Porto Alegre, RS, Brasil
2 Solid State Chemistry, National Research Council of Canada, Ottawa K1AOR9, Canada
J. Phys. Colloques 49 (1988) C8-179-C8-180
DOI: 10.1051/jphyscol:1988876
CRITICAL RESISTIVITY AND LOW FIELD MAGNETORESISTANCE IN Pd2MnSn
P. Pureur1, G. L. Fraga1, J. V. Kunzler1, W. H. Schreiner1, D. E. Brandão1 et C. M. Hurd21 Instituto de Fisica - UFRGS, Campus do Vale, POB 15051, 91500 Porto Alegre, RS, Brasil
2 Solid State Chemistry, National Research Council of Canada, Ottawa K1AOR9, Canada
Abstract
We report on the temperature derivative of the resistivity of the Heusler compound Pd2MnSn near the para-ferromagnetic transition. For T > Tc a critical exponent α = 0.00 ± 0.05 is found. Below Tc, we observe a complex behaviour which depends on the quality of the samples and can be suppressed by small magnetic fields.