| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-1503 - C8-1504 | |
| DOI | https://doi.org/10.1051/jphyscol:19888692 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1503-C8-1504
DOI: 10.1051/jphyscol:19888692
1 Laboratoire PMTM, CNRS, Université Paris-Nord, Avenue JB Clément, 93430 Villetaneuse, France
2 Laboratoire d'Optique Physique, ER5 du CNRS, ESPCI, 10 rue Vauquelin, 75231 Cedex 05, France
J. Phys. Colloques 49 (1988) C8-1503-C8-1504
DOI: 10.1051/jphyscol:19888692
MAGNETIC AND STRUCTURAL TRANSITIONS IN THE 2-D SYSTEM Rb2CrxMn1-xCl4 : A RAMAN STUDY
P. Moch1, A. T. Abdalian1, C. Dugautier1, B. Briat2 et M. Nerozzi21 Laboratoire PMTM, CNRS, Université Paris-Nord, Avenue JB Clément, 93430 Villetaneuse, France
2 Laboratoire d'Optique Physique, ER5 du CNRS, ESPCI, 10 rue Vauquelin, 75231 Cedex 05, France
Abstract
The x dependence of phase transitions in Rb2CrxMn1-xCl4 is studied through Raman scattering. The one-magnon and the two-magnon spectra observed in the ferromagnetic and in the antiferromagnetic phases respectively are discussed. The phonon spectra are interpreted within a model assuming a distorted-undistorted transition at x ≈ 0.4.