Rotational properties of vector phenomenological models of magnetic media

A modular computer package was developed to obtain the behavior of both the reversible and the irreversible components of the magnetization of media models as an applied field’s strength is varied and rotated. This package was designed to evaluate vector models, and consists of a preprocessor, a solver, and a post-processor. Two solvers have been implemented, namely the vector-product model and the vector-moving model. This package, due its structure which is capable of comparing the properties of different models, as well as analyzing experimental data, is intended to be used to find an optimum set of model parameters. Since the modules communicate through files, one could directly drive a computer-controlled vibrating sample magnetometer from this package, instead of using a model solver. Thus, one can compare experimental and computed data directly with the same commands. The post-processor graphics allows the user to view and compare several outputs.