2016, 02 February | |
DOI: 10.14489/td.2016.02.pp.055-060 Chernyshev A.V. Abstract. It is analyzed the method of determining the reversible component of magnetization in Jiles–Atherton model of magnetic hysteresis. It is well known that it is necessary to eliminate the influence on the measurement results of the irreversible processes when determining the reversible susceptibility rev, i.e. at the same time the irreversible component of the magnetization must to be equal to the constant. This condition is not satisfied in the Jiles–Atherton model. Determined by means of this model results shows that character dependence of rev on the magnetization of considered ferromagnet appears different from the known. In addition, the authors of the model made a mistake in calculating of the energy balance of ferromagnet in the derivation of the expression for determining the differential irreversible susceptibility. It means that the Jiles–Atherton model does not have the correct physical basis but at the same time, in some cases, it provides satisfactory results in calculating of the hysteresis loops. A review of works devoted to the modification of the Jiles–Atherton model to improve its accuracy is presented. Keywords: Jiles–Athrton model, reversible component of magnetization, irreversible component of magnetization, magnetic hysteresis modeling, magnetic susceptibility.
A. V. Chernyshev
1. Jiles D. C., Atherton D. L. (1986). Theory of ferromagnetic hysteresis. JMMM, 61, pp. 48-60.
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