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Computer aided study of the hard-magnetic materials anisotropy

The anisotropy of the magnetic materials is an important parameter in many cases, especially in modern applications, like sensors or drives. This paper proposes a new approach to the study of the behavior of the intrinsic and extrinsic properties of these materials depending of the orientation of the sample in a magnetic field. By controlling a Vibrating sample magnetometer (VSM), it could be possible to obtain a hysteresis loop for various magnetization angles. The study was made mostly for tape recording media samples but it could be generalized to all magnetic materials on the market. The main advantage of this study is the possibility of digitally control on the VSM, which made this approach more flexible, fast and accurate.