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Shock Excitation of the Magnetization Oscillations in a Magnetoelastic Medium by Complex-Shaped Elastic Pulses

  • RADIO PHENOMENA IN SOLIDS AND PLASMA
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Abstract

Using the pump‒probe scheme, the time evolution of magnetization oscillations in a normally magnetized plate with magnetoelastic properties under the action of an elastic pulse with pulled edges excited by a high-power pulsed laser has been studied. Four options for pulling the pulse fronts have been investigated: (i) no pulling, (ii) pulling the pulse leading edge, (iii) pulling the pulse trailing edge, and (iv) pulling the leading and trailing edges of the pulse simultaneously. It is shown that the sharp leading edge of the pulse leads to the excitation of magnetization oscillations at a frequency significantly higher than the resonance one, while the sharp trailing edge, to the excitation of the high-intensity nonstationary magnetic oscillations. Pulling of both pulse edges makes the magnetic oscillations smooth and regular. Possible reasons for extending the edges of the elastic pulse are discussed.

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Funding

This study was carried out within the state assignment for the Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, and supported in part by the Government of the Komi Republic and the Russian Foundation for Basic Research (project no. 20-42-110004, r_a) and the Russian Science Foundation (project no. 21-72-20048).

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Authors and Affiliations

  1. Syktyvkar State University, 167001, Syktyvkar, Russia

    V. S. Vlasov & P. A. Makarov

  2. Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 125009, Moscow, Russia

    V. G. Shavrov & V. I. Shcheglov

Authors
  1. V. S. Vlasov
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  2. P. A. Makarov
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  3. V. G. Shavrov
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  4. V. I. Shcheglov
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Corresponding author

Correspondence to V. I. Shcheglov.

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Translated by E. Bondareva

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Vlasov, V.S., Makarov, P.A., Shavrov, V.G. et al. Shock Excitation of the Magnetization Oscillations in a Magnetoelastic Medium by Complex-Shaped Elastic Pulses. J. Commun. Technol. Electron. 66, 1282–1288 (2021). https://doi.org/10.1134/S1064226921100156

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  • DOI: https://doi.org/10.1134/S1064226921100156

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