Title :
Asymmetric hysteresis loops in Co-based ferromagnetic alloys
Author :
Shin, K.H. ; Graham, C.D., Jr. ; Zhou, Peter Y.
Author_Institution :
Dept. of Mater. Sci. & Eng., Pennsylvania Univ., Philadelphia, PA, USA
fDate :
9/1/1992 12:00:00 AM
Abstract :
Amorphous ferromagnetic alloys annealed below the Curie point in a small magnetic field develop a reproducible, asymmetric hysteresis loop. If the direction of the field during annealing is regarded as +, the magnetization reversal from + to - occurs in a single irreversible Barkhausen jump, but the reversal from - to + is smooth and reversible with its slope determined by the demagnetizing field of the sample. Various other features of this phenomenon are described. The measurements reported were carried out in ribbons of Co70.5Fe 4.5Si10B15
Keywords :
cobalt alloys; magnetic hysteresis; magnetic properties of amorphous substances; Co alloys; Co70.5Fe4.5Si10B15; asymmetric hysteresis loop; ferromagnetic alloys; irreversible Barkhausen jump; reversible loops; Amorphous materials; Annealing; Iron alloys; Magnetic field measurement; Magnetic fields; Magnetic hysteresis; Magnetic materials; Magnetic sensors; Magnetization; Shape;
Journal_Title :
Magnetics, IEEE Transactions on
