SPIN-GLASS BEHAVIOUR IN IRON SPINELS J. L. Soubeyroux, D. Fiorani, E. Agostinelli, S. C. Bhargava et J. L. Dormann J. Phys. Colloques, 49 C8 (1988) C8-1117-C8-1118 DOI: 10.1051/jphyscol:19888513