Title :
Coercivity mechanism in (Co/Pt) and (Co/Pd) multilayers
Author_Institution :
IBM Res. Div., Almaden Res. Center, San Jose, CA, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
The coercivity mechanism of multilayer (Co/Pt) and (Co/Pd) is discussed based on the phenomenological micromagnetic theory and the magnetic relaxation treatment. Based on the micromagnetic theory, the pinning size of the order of a few Å is found for both (Co/Pt) and (Co/Pd), but about 100 Å for an amorphous TbFeCo film. On the other hand, the magnetic relaxation approach estimates the Barkhausen volume of the order of 10-18cm3 for these multilayers
Keywords :
cobalt; coercive force; magnetic multilayers; magnetic relaxation; palladium; platinum; 100 A; Barkhausen volume; Co-Pd; Co-Pt; Co/Pd multilayers; Co/Pt multilayers; a-TbFeCo film; coercivity; magnetic relaxation; phenomenological micromagnetic theory; pinning size; Amorphous magnetic materials; Coercive force; Magnetic anisotropy; Magnetic films; Magnetic multilayers; Micromagnetics; Microstructure; Nonhomogeneous media; Perpendicular magnetic anisotropy; Silicon compounds;
Journal_Title :
Magnetics, IEEE Transactions on
