Title :
Analysis of stress-dependent hysteresis in soft amorphous materials [Fe64Co21B15 ribbons]
Author :
Pasquale, M. ; Appino, C. ; Sasso, C.P. ; Basso, V. ; Beatrice, C. ; Bertotti, G.
Author_Institution :
Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
7/1/2001 12:00:00 AM
Abstract :
We present data on hysteresis under stress in amorphous materials. A novel approach, based on a modified Stoner-Wohlfarth model is applied. Results are compared with data derived from the Preisach analysis of measured hysteresis curves. The distribution of local random anisotropies is obtained from saturation return curves. On this basis, the distribution of local switching fields is derived and is directly compared with the distribution of coercive fields obtained from the Preisach analysis. These results provide physical justification for the Preisach prediction of hysteresis curves
Keywords :
amorphous magnetic materials; boron alloys; cobalt alloys; coercive force; ferromagnetic materials; iron alloys; magnetic hysteresis; soft magnetic materials; Fe64Co21B15; Preisach analysis; coercive fields; local random anisotropies; local switching fields; modified Stoner-Wohlfarth model; saturation return curves; soft amorphous materials; stress-dependent hysteresis; Amorphous magnetic materials; Amorphous materials; Anisotropic magnetoresistance; Magnetic analysis; Magnetic anisotropy; Magnetic field measurement; Magnetic hysteresis; Magnetic materials; Magnetostriction; Tensile stress;
Journal_Title :
Magnetics, IEEE Transactions on
