Physics

Generation of hypersonic oscillations in the elastic subsystem of magnetic films by the pulse magnetic field

F. F. Asadullin^ab, V. S. Vlasov^b, L. N. Kotov^b, D. A. Pleshev<sup>ab

a</sup> Saint-Petersburg State Forest Technical University named after S.M. Kirov, Saint-Petersburg, Russia
^b Syktyvkar State University named after Pitirim Sorokin, Syktyvkar, Russia

Abstract: The work is deal with the study of the features of the dynamics of the magnetic and elastic subsystems arising from the generation of hypersonic oscillations during pulsed magnetization reversal of thin films in an exchange-free approximation. The magnetization reversal is carried out by a constant magnetic field. The oscillations time dependences of the magnetization vector and elastic displacements to parameter of magnetic and elastic dissipation were considered in the research. The research have shown that the magnetic dissipation parameter has a greater impact on the magnetization reversal process in contrast to elastic dissipation.

Keywords: nonlinear oscillations, magnetoelastic oscillations, magnetization vector, magnetostriction.

UDC: 537.6

Received: 09.01.2019
Revised: 27.04.2019

DOI: 10.24411/2500-0101-2019-14207

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