INVESTIGATION OF MAGNETIC STRUCTURES AND PHASE TRANSITIONS IN NiS2 BY 61Ni-MÖSSBAUER SPECTROSCOPY G. CZJZEK, J. FINK, H. SCHMIDT, G. KRILL, F. GAUTIER, M. F. LAPIERRE et C. ROBERTJ. Phys. Colloques, 35 C6 (1974) C6-621-C6-623DOI: https://doi.org/10.1051/jphyscol:19746134