Remanence loop asymmetry and moving-type Preisach models

The observed asymmetry of the remanence loop of a particulate recording sample can be described by the complete-moving-hysteresis (CMH) model using a symmetrical Preisach distribution. The amount of asymmetry depends on the moving parameter, the squareness, and the reversible magnetization. It is shown that, for certain types of materials, the major hysteresis loop and the major remanence loop provide sufficient information to identify the moving parameter