Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-1437 - C8-1438
DOI https://doi.org/10.1051/jphyscol:19888659
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-1437-C8-1438

DOI: 10.1051/jphyscol:19888659

MAGNETISM OF A TWO-DIMENSIONAL XY SYSTEM : NEUTRON STUDIES OF CoCl2 INTERCALATED GRAPHITE

J. Rogerie1, Ch. Simon2, I. Rosenman2, J. Schweizer1, 3, Ch. Vettier1, R. Vangelisti4 et P. Pernod4

1  DRF-DN, CEN Grenoble, France
2  GPS-ENS, Université Paris 7, 75251 Paris Cedex 05, France
3  Institut Laue Langevin, Grenoble, France
4  Laboratoire de Chimie Minérale Appliquée, Université de Nancy I, France


Abstract
We present the results of magnetic neutron diffraction studies on a single crystal of a first stage CoCl2 intercalated graphite by elastic and inelastic techniques versus temperature. We deduce the magnetic couplings and the presence of defects such as vortices, related to the 2D XY nature of the compound.