Abstract
The forced nonlinear precession of the magnetization vector in the normally magnetized magnetic plate is considered under the conditions for the orientational transition. The time dependences and precession patterns of the oscillations of magnetization are presented. Five regimes of precession are revealed: small-amplitude circular precession, precession of the equilibrium position without encircling of center, undamped precession of equilibrium position with encircling of center, damped precession of equilibrium position with encircling of center, and full-scale circular precession. The transitions between the regimes are studied using the 3D model of potential. The domains of the regimes of precession are determined on the plane decay parameter-ac field amplitude. It is demonstrated that a variation in the amplitude of the ac field leads to the stepwise dynamic orientational transition from the fourth regime to the fifth regime. The recommendations for the practical applications are worked out using the results.
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Original Russian Text © V.S. Vlasov, L.N. Kotov, V.G. Shavrov, V.I. Shcheglov, 2011, published in Radiotekhnika i Elektronika, 2011, Vol. 56, No. 9, pp. 1120–1131.
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Vlasov, V.S., Kotov, L.N., Shavrov, V.G. et al. Multiregime character of the nonlinear precession of the second-order magnetization under the conditions for the orientational transition. J. Commun. Technol. Electron. 56, 1117–1128 (2011). https://doi.org/10.1134/S1064226911080122
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DOI: https://doi.org/10.1134/S1064226911080122