Issue
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-355 - C8-356
DOI https://doi.org/10.1051/jphyscol:19888159
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-355-C8-356

DOI: 10.1051/jphyscol:19888159

MAGNETIC ORDERING IN DILUTE YTb AND YEr ALLOYS

B. D. Rainford1, S. H. Kilcoyne2, K. A. Mohammed3, P. C. Lanchester1, H. B. Stanley4 et R. Caudron5

1  Physics Department, University of Southampton, SO95NH, G.B.
2  Institute Laue Langevin, BP 156X, 38042 Grenoble Cedex, France. Present address : ICI Research Laboratories, Runcorn, G.B.
3  Direction des Matériaux, ONERA, 92320 Chatillon, France.
4  Physics Dept., Reading University, RG6 2AF, G.B.
5  Physics Dept., University of Mosul, Iraq.


Abstract
Dilute YEr alloys show the existence of sinusoidaily modulated antiferromagnetism down to the lowest impurity concentrations studied. Extrapolation of the Néel temperatures for both YEr and YTb suggests a critical concentration is ≈ 0.8 % Tb, Er. Ordering in such dilute alloys may result from exchange enhancement in the yttrium host.