Title :
Microstructural study of amorphous magnetic materials through the Barkhausen effect
Author :
Durin, G. ; Beatrice, C. ; Bertotti, G.
Author_Institution :
Istituto Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
3/1/1994 12:00:00 AM
Abstract :
Within the frame of a Langevin description of Barkhausen effect (BE) phenomenology, a theoretical and experimental approach including the effect of longitudinal magnetic flux propagation is presented. Measurements of BE power spectra and of amplitude probability distributions of jumps are performed on amorphous ferromagnets either as-quenched or magnetic annealed. Theoretical curves are compared with experimental data and the microscopic theory parameters are discussed
Keywords :
Barkhausen effect; ferromagnetic properties of substances; ferromagnetism; magnetic properties of amorphous substances; Barkhausen effect; Langevin description; amorphous magnetic materials; as-quenched; ferromagnets; magnetic annealed; magnetic flux propagation; Amorphous magnetic materials; Amorphous materials; Annealing; Equations; Magnetic flux; Magnetic hysteresis; Microscopy; Probability distribution; Stress; Surface fitting;
Journal_Title :
Magnetics, IEEE Transactions on
