Title :
A theoretical study of interfacial spin flop in exchange-coupled bilayers
Author :
Xi, Haiwen ; White, Robert M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
A variational approach is used to study the role of the spin-flop configuration on exchange bias in a ferromagnetic/antiferromagnetic bilayer with a compensated interface. Both irreversible and reversible behavior of the antiferromagnet is predicted as the ferromagnetic magnetization rotates in the plane of the film. The analysis shows that the spin flop does not introduce exchange bias but it does lead to a coercivity in either the irreversible or reversible regimes
Keywords :
antiferromagnetic materials; coercive force; exchange interactions (electron); ferromagnetic materials; magnetic multilayers; magnetisation reversal; variational techniques; coercivity; compensated interface; exchange-coupled bilayers; ferromagnetic/antiferromagnetic bilayer; interfacial spin flop; irreversible behavior; magnetization rotation; reversible behavior; theoretical study; variational approach; Anisotropic magnetoresistance; Antiferromagnetic materials; Coercive force; Giant magnetoresistance; Helium; Magnetic analysis; Magnetic domain walls; Magnetic films; Magnetic hysteresis; Magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
