Abstract:

A general formula for calculation of three-component magnetization of applicable to any spin quantum number is derived. Then, magnetizing of antiferromagnetic films is studied. Under a transverse field, even above Neel point, the magnetization component along the easy-axis of the sublattice is not zero. The physical reason of this phenomenon is pointed out. The magnetizing curves and the hysteresis loops of a ferromagnetic polycrystal sample are calculated. The anomalous hysteresis loops of antiferromagnetically coupled ferromagnetic bilayers are investigated. We also study the mechanism of the exchange bias (EB) of FM/AFM bilayers in both uncompensated and compensate cases. The EB mechanism of the compensate case is analyzed.
 
 
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