Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-967 - C8-968
DOI https://doi.org/10.1051/jphyscol:19888442
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-967-C8-968

DOI: 10.1051/jphyscol:19888442

MAGNETO-OPTICAL VISUALIZATION OF CRYSTAL TWINS IN TETRAGONAL ANTIFERROMAGNET Ca3Mn2Ge3O12

V. V. Eremenko1, N. F. Kharchenko1, S. V. Sofroneev1, S. L. Gnatchenko1, H. Le Gall2 et J. M. Desvignes2

1  Institute for Low Temperature Physics and Engineering, Ukr. SSR Academy of Sciences, 47 Lenin Avenue, 310164 Kharkov, U.S.S.R.
2  CNRS Laboratoire de Magnétisme et d'Optique des Solides, 92195 Meudon, France


Abstract
High susceptibility of linear magneto-optic effect to mutual orientations of sublattice magnetic moments and crystallographic directions makes it possible to distinguish visually crystal twins which have the same optical indicatrix with similar orientations of its axes. Visual observation of such twins is reported in antiferromagnetic Ca-Mn-Ge-garnet.