Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-65-C8-66
DOI: 10.1051/jphyscol:1988819
TEMPERATURE DEPENDENCE OF THE THERMAL EXPANSION COEFFICIENT, BULK MODULUS AND MAGNETIC GRUENEISEN CONSTANT OF NICKEL NEAR THE CURIE POINT
T. FaisstSektion Physik, Universität München, D-8000 München 40, F.R.G.
Abstract
Linear thermal expansion and bulk modulus are measured by the neutron backscattering technique in a nickel single crystal. The critical exponent of the thermal expansion coefficient agrees well with the theory of the specific heat for the Heisenberg model. The bulk modulus shows a small peak at the Curie point.