Abstract
It is shown in this paper that in the sense of the dynamic behavior a uniaxial ferromagnet magnetized along the “difficult” direction is equivalent near a magnetic phase-transition point to some nonlinear oscillator, described by the Duffing differential equation. The frequency dependence of absorption and dispersion signals is studied and the existence of a crunode point of the dispersion curve is shown.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 65–68, July, 1978.
In conclusion, the author is grateful to M. I. Kurkin for supervising the research and discussing its results.
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Lugovoi, A.A. Dynamic behavior of a uniaxial ferromagnet near a magnetic phase-transition point. Soviet Physics Journal 21, 891–894 (1978). https://doi.org/10.1007/BF00892044
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DOI: https://doi.org/10.1007/BF00892044