Inverse approach for Preisach function calculation

Summary form only given. In magnetization modeling such as Preisach and Chua type models it is essential to take hysteresis and/or saturation properties into account for magnetic field calculation based on partial differential equations. In the case of magnetic thin film, since it is difficult to measure the flux density B as well as field H due to demagnetization, the investigation on microscopy based measurement such as the Kerr effect has been spurred. This inspires the present study to derive the Preisach functions /spl Psi/ from magnetic domain images by means of the inverse approach.