DIFFERENTIAL SUSCEPTIBILITY X(T, H) OF THE MIXED MAGNETIC SYSTEM PdFeMn B.H. Verbeek, G.J. Nieuwenhuys, H. Stocker et J.A. Mydosh J. Phys. Colloques, 39 C6 (1978) C6-916-C6-917 DOI: 10.1051/jphyscol:19786407