OBSERVATION OF MAGNETIC DOMAIN IN A FERROMAGNETIC SERIES K2Cu1-xCoxF4 BY FARADAY EFFECT AT LOW TEMPERATURES M. Watanabe, A. Yokotani, M. Matsuura et I. YamadaJ. Phys. Colloques, 49 C8 (1988) C8-1897-C8-1898DOI: https://doi.org/10.1051/jphyscol:19888860