Rotational first-order reversal curves (rFORC) diagrams

In recent years, there is a strong interest in the development of more efficient vector hysteresis models which can correctly describe the magnetization processes in ferromagnetic materials taking into account the vector nature of both applied field and magnetic moment. The scalar Preisach-type models complemented with the identification based on a set of first-order reversal curves (FORC) are typical examples of scalar hysteresis models which can provide accurate results in a large variety of cases. In the development of vector models the main difficulties are the numerical implementation and the lack of clear and tractable identification techniques. In this paper we are introducing a new type of measurement, a set of FORCs measured on the rotational hysteresis, and we are investigating it as a testing method for the vector hysteresis models performances.