Abstract
The vicinities of two resonance points where longitudinal and transverse elastic waves interact with the magnetic mode are considered. The caustic patterns of magnetoelastic waves (MEW) in galfenol crystals Fe\(_{1-x}\)Ga\(_{x}\) with two compositions (x = 0.18 and x = 0.086) are calculated. The investigation of MEW focusing and caustic is based on the analysis of constant frequency surfaces, which are obtained in the model of continuous medium. It was found that the caustic patterns significantly depend on the magnitude of external magnetic field and galfenol composition.
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The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme ‘Function’ No. 122021000035-6), S.P.Savchenko thanks IMP UB RAS for supporting the work by the project No. m1-21, which was provided within the state assignment of Ministry of Science and Higher Education of Russia (theme ‘Function’ No. 122021000035-6).
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Savchenko, S.P., Bakharev, S.M. & Borich, M.A. Caustic Pattern of Magnetoelastic Waves in the Vicinity of Magnetoelastic Resonance in Fe\(_{1-x}\)Ga\(_{x}\) Crystal. J Supercond Nov Magn 35, 2241–2245 (2022). https://doi.org/10.1007/s10948-022-06224-6
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DOI: https://doi.org/10.1007/s10948-022-06224-6