SUPERPARAMAGNETISM, SPIN GLASS BEHAVIOUR AND SPIN RELAXATION IN LiAl3.6Fe1.4O8 : A MOSSBAUER STUDY S. C. Bhargava J. Phys. Colloques, 49 C8 (1988) C8-1051-C8-1052 DOI: 10.1051/jphyscol:19888480