journal article·2010-03

Explosive instability of quasi-phonon triads in antiferromagnet under frequency modulated electromagnetic field

V. Preobrazhensky, O. Yevstafyev, P. Pernod, V. Berzhansky

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Abstract

Abstract Compensation of nonlinear frequency shift of hybrid magnetoelastic waves (quasi-phonons) in the process of parametric three-boson coupling is studied theoretically and experimentally. The singular frequency modulation of electromagnetic pumping is proposed for the observation of explosive instability of quasi-phonon triads. The explosive supercritical dynamics is simulated theoretically on the basis of strong nonlinear equations of magnetoelastic dynamics and observed in α -Fe 2 O 3 magnetoacoustic resonator.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Mechanical and Optical Resonators · Acoustic Wave Resonator Technologies · Cold Atom Physics and Bose-Einstein Condensates

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