F. Vajda et E. Dellatorre, EXPERIMENTAL-ANALYSIS OF VECTOR PREISACH MODELING FOR ANISOTROPIC RECORDING MEDIA, IEEE transactions on magnetics, 31(6), 1995, pp. 2907-2909
An experimental analysis of the rotational remanence properties of var
ious recording samples is presented. The locus of the saturation reman
ence is an ellipse. For smaller rotating fields, the trajectory is a s
piral whose limit cycle is an ellipse; however, depending on the initi
al magnetization, the aspect ratio and the center of the ellipse for s
mall fields are different from those for the saturating field case.