VECTOR HYSTERESIS MODELING FOR ANISOTROPIC RECORDING MEDIA

Numerically efficient Preisach-based vector hysteresis models for elli psoidally magnetizable media are presented. Both models are based on o rthogonal coupled scalar models and take into consideration the variat ion in particle switching fields and interaction; however, the couplin g mechanism is different in the two models. The rules determining the magnetization state corresponding to the vector applied field are disc ussed. The basic rotational remanence properties of the models are com patible with observed vector phenomena.