J. Phys. Colloques 49 (1988) C8-1895-C8-1896
PIEZOMAGNETISM AND DOMAINS IN MnF2J. Baruchel1, A. Draperi2, M. El Kadiri2, 3, G. Fillion2, M. Maeder2, P. Molho2 et J.L. Porteseil2
1 I.L.L, 156X, 38042 Grenoble, France
2 Lab. L. Néel, CNRS-UJF, 166X, 38042 Grenoble, France
3 Univ. of Rabat, Morocco
Neutron topographic experiments show that the simultaneous application of an uniaxial stress and a magnetic field when cooling a MnF2 crystal through TN favours one type of 180° antiferromagnetic domain. This appears to be related to the piezomagnetism of MnF2, in spite of the weakness of this effect, which was measured in our case by a SQUID.