Abstract
The frequency dependences of the group velocity and the damping of a magnetoelastic surface wave have been studied at various values of an external magnetic field and various angles of propagation. The group velocity bursts are observed at frequencies, at which peaks of surface wave damping take place. The behavior of a surface magnetoelastic wave is also studied near the orientation phase transition. In the phase transition point, the group velocity is changed by 1%. The dependences of the damping along the surface at various angles of propagation indicate the nonreciprocal wave nature. In this work, all the dependences have been obtained using computer calculations and the ferromagnet parameters are taken to be typical for iron–yttrium garnet.
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