Photopyroelectric study of the thermal parameters of antiferromagnets at the Neel temperature M. Marinelli, F. Mercuri, U. Zammit, R. Pizzoferrato, F. Scudieri et D. Dadarlat J. Phys. IV France, 04 C7 (1994) C7-261-C7-266 DOI: 10.1051/jp4:1994762