| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-983 - C8-984 | |
| DOI | https://doi.org/10.1051/jphyscol:19888450 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-983-C8-984
DOI: 10.1051/jphyscol:19888450
Service de Physique du Solide et de Résonance Magnétique, CEN-Saclay, 91191 Gif-sur-Yvette Cedex, France
J. Phys. Colloques 49 (1988) C8-983-C8-984
DOI: 10.1051/jphyscol:19888450
MAGNETIC PROPERTIES OF THE ANTIFERROMAGNETIC GARNET Ca3Mn2Ge3O12 AT T > TN
R. Plumier et M. SougiService de Physique du Solide et de Résonance Magnétique, CEN-Saclay, 91191 Gif-sur-Yvette Cedex, France
Abstract
Neutron diffraction and magnetization experiments performed on both sides of TN = 13.85 K in MnGeG are explained by a microdomain phase Q existing in the range TN < T < T2 (T2 ≈ 19.5 K). At critical fields, Q transforms into the same spin flop macrodomain phase found at T < TN. Biquadratic and antisymmetrical exchange effects are pointed out.