Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-311 - C8-312
DOI https://doi.org/10.1051/jphyscol:19888140
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-311-C8-312

DOI: 10.1051/jphyscol:19888140

LOW ENERGY MAGNETIC EXCITATIONS IN TERNARY INVAR-ALLOYS

G. V. Lecomte, N. Schubert, M. F. Opheys et E. F. Wassermann

Labor für Tieftemperaturphysik der Universität, D-4100 Duisburg, F.R.G.


Abstract
Measurements of the low temperature specific heat cp of the reentrant ferromagnetic alloys Fe50Ni35Mn15 and Fe57Ni23Cr20 show that the large linear parts of cp are reduced by 15 % and 25 % respectively in a magnetic field of 6 T. This observation constitutes a confirmation of the magnetic origin of the excess specific heat at low temperatures.