This paper presents some useful discussions on the surface wave guided by the interface of two semi-infinite media in contact, of which one is piezoelectric and the other magnetoelastic. The dispersion relation has been derived and the distribution of the electric potential and the particle displacement as a function of the depth has been estimated numerically for the chosen media of ZnO and GaYIG. Subsequently, it has been shown that the nonreciprocal transmission characteristics in the narrow band can be obtained when two media have different elastic constants.
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