AC susceptibility studies in the amorphous Ni80-xFexSi8B12(2.4⩽x⩽16) alloys

Abstract
The authors have studied the re-entrant phenomena on the new amorphous Ni80-xFexSi8B12 (2.4<or=x2.4 show ferromagnetic order. The results indicate the importance of the study of the frequency dependence of chi " in the re-entrant region. A tentative phase diagram is proposed.