Title :
Preisach Model of Exchange Bias in Antiferromagnetically Coupled Bilayers
Author :
Hovorka, Ondrej ; Berger, Andreas ; Friedman, Gary
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ.
Abstract :
The history dependence of exchange bias effects in antiferromagnetically coupled (AFC) bilayer systems is analyzed. A mean-field description of the exchange bias in AFC structures is shown to be equivalent to a Preisach model. A methodology for the identification of interfacial exchange coupling distributions is developed
Keywords :
antiferromagnetic materials; magnetic multilayers; magnetisation; Preisach model; antiferromagnetically coupled bilayer systems; exchange bias effects; interfacial exchange coupling distributions; Antiferromagnetic materials; Automatic frequency control; Coercive force; Couplings; History; Magnetic field measurement; Magnetic hysteresis; Magnetic switching; Magnetization; Switches; Antiferromagnetic coupling; Preisach model; exchange bias;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.880738
