| Numéro |
J. Phys. I France
Volume 1, Numéro 10, October 1991
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|---|---|---|
| Page(s) | 1529 - 1537 | |
| DOI | https://doi.org/10.1051/jp1:1991102 | |
J. Phys. I France 1 (1991) 1529-1537
High temperature magnetisation distribution in nickel
P. J. Brown1, J. Deportes2 and K. R. A. Ziebeck31 Institut Max von Laue-Paul Langevin, 156X, 38042 Grenoble, France
2 Laboratoire Louis Néel, CNRS 166X, 38042 Grenoble, France
3 Physics Department, University of Technology, Loughborough, LE11 3TU, England
(Received 7 May 1990, accepted 10 June 1991)
Abstract
The distribution of the magnetisation in nickel metal has been studied as a function of temperature
in the range 292 to 725 K using polarised neutron scattering complemented by measurements of the
bulk magnetisation. The results have been analysed using the model of Mook [1] in terms of a
localised 3d moment with cubic anisotropy superposed on a diffuse magnetisation of reverse polarity.
The anisotropy of the form factor seems to show less variation with temperature than that found in
previous work. The bulk magnetisation measurements indicate a Curie temperature of 628 K and
combined with the observed temperature variation of the 111 magnetic structure factor suggest that
the diffuse negative magnetisation disappears at the Curie temperature.
© Les Editions de Physique 1991