OPTICAL INVESTIGATIONS OF THE COOPERATIVE JAHN-TELLER EFFECT IN THE MIXED CRYSTAL SYSTEM (Tbx, Dy1-x) VO4

G. Hess; H. G. Kahle

doi:doi:10.1051/jphyscol:19888404

Numéro		J. Phys. Colloques Volume 49, Numéro C8, Décembre 1988 Proceedings of the International Conference on Magnetism


Page(s)		C8-891 - C8-892
DOI		https://doi.org/10.1051/jphyscol:19888404

Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-891-C8-892
DOI: 10.1051/jphyscol:19888404

OPTICAL INVESTIGATIONS OF THE COOPERATIVE JAHN-TELLER EFFECT IN THE MIXED CRYSTAL SYSTEM (Tb_x, Dy_1-x) VO₄

G. Hess et H. G. Kahle

Physikalisches Institut der Universität Karlsruhe, Engesserstr. 7, POB 6980, D-7500 Karlsruhe 1, F.R.G.

Abstract
The phase diagram of (Tb_x, Dy_1-x) VO₄ was studied by crystal optical methods. The low-temperature properties of the mixed crystals are found to depend on the different distorted structures of the pure substances. In (Tb_0.4, Dy_0.6) VO₄, two phase transitions are observed, resulting in a superposition of the two distortion types.