Title :
Switching mechanism and domain structure of bistable amorphous wires
Author :
Vázquez, M. ; Gómez-Polo, C. ; Chen, D.X.
Author_Institution :
Inst. de Ciencia de Mater., CSIC, Madrid, Spain
fDate :
9/1/1992 12:00:00 AM
Abstract :
Hysteresis loops and domain structure of as-cast Fe-rich and stress-annealed low magnetostrictive Co-rich bistable wires have been investigated as functions of the distance to the end of wires with different lengths. From the analysis of the changes of the squareness ratio and differential susceptibility at remanence, the existence of conical closure domains at the ends to decrease the magnetostatic energy is inferred. The switching process is accompanied by a sudden reconstruction of the domain structure
Keywords :
Barkhausen effect; boron alloys; cobalt alloys; ferromagnetic properties of substances; iron alloys; magnetic domains; magnetic hysteresis; magnetic properties of amorphous substances; magnetic switching; silicon alloys; (Co0.94Fe0.06)72.5Si12.5 B15; Barkhausen jump; Fe77.5B7.5Si15; bistable amorphous wires; conical closure domains; differential susceptibility; domain structure; domain structure reconstruction; hysteresis loops; magnetostatic energy; remanence; squareness ratio; stress annealed low magnetostrictive bistable wires; switching process; Amorphous magnetic materials; Amorphous materials; Hysteresis; Magnetic analysis; Magnetic domains; Magnetic susceptibility; Magnetostatics; Magnetostriction; Remanence; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
