| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-875 - C8-876 | |
| DOI | https://doi.org/10.1051/jphyscol:19888396 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-875-C8-876
DOI: 10.1051/jphyscol:19888396
Groupe d'Etude des Semiconducteurs, USTL, Place E. Bataillon, 34060 Montepellier Cédex, France
J. Phys. Colloques 49 (1988) C8-875-C8-876
DOI: 10.1051/jphyscol:19888396
EXCHANGE MECHANISM IN SEMIMAGNETIC SEMICONDUCTORS FROM HIGH MAGNETIC FIELD MAGNETIZATION
J. P. Lascaray et A. BrunoGroupe d'Etude des Semiconducteurs, USTL, Place E. Bataillon, 34060 Montepellier Cédex, France
Abstract
The analysis of high magnetic field magnetization provides a direct determination of the exchange constants between Mn spins. The study of these values indicate clearly that superexchange is the dominant mechanism for wide gap SMSC, whereas one other type of exchange, probably related to the gap value, is also present in narrow gap SMSC.