Issue
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1381 - C8-1382
DOI https://doi.org/10.1051/jphyscol:19888633
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1381-C8-1382

DOI: 10.1051/jphyscol:19888633

NEW DOUBLE MAGNON MODES IN PLANAR ANTIFERROMAGNETIC CHAINS IN A FIELD

J. P. Boucher1, M. Remoissenet2, R. Pynn3 et L. P. Regnault1

1  Centre d'Etudes Nucléaires de Grenoble, DRF/SPh/DSPE et MDN, 85X, 38041 Grenoble cedex, France
2  Laboratoire ORC, Université de Bougogne, 21100 Dijon, France
3  MS H 805 LANL, Los Alamos, New Mexico, NM8745 U.S.A.


Abstract
Planar antiferromagnetic chains in a field provide a good support for the study of non linear excitations (solitons). In recent inelastic neutron scattering measurements performed with TMMC new collective excitations have been found which are explained in terms of non linear magnon processes.