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Magnetoelastic wave tunneling via a gap between ferroelectric crystals with relative longitudinal displacement |
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| Authors: | Vilkov E. A. Moiseev A. V. Shavrov V. G. |
| Affiliation: | 1.Institute of Radio Engineering and Electronics (Ul’yanovsk Branch), Russian Academy of Sciences, Ul’yanovsk, Russia ;2.Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, 432011, Russia ; |
| Abstract: | The tunneling of a plane monochromatic acoustic wave via a gap between two ferromagnetic crystals exhibiting relative longitudinal displacement has been studied. It is shown that, at a gap width comparable with the wavelength, the acoustic wave can exhibit complete transmission at the Damon-Eshbach mode frequency. If the gap width is much smaller than the wavelength, the complete transmission takes place at two resonance frequencies. Allowance for the longitudinal displacement of one crystal leads in all cases to violation of the resonance conditions, which results in a significant decrease in the transmission coefficient. The greater the velocity of crystal displacement, the stronger the decrease in the acoustic wave transmission though the gap between ferromagnetic crystals. |
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