Bragg resonance of elastic wave reflection in a piezomagnetic layered structure with superconductive interfaces

Oblique incidence of a shear horizontal elastic wave on a periodic structure of identical piezomagnetic layers, separated by thin superconductive coatings, is considered. The Bragg resonance of reflection arising due to the s state on the interfaces is analyzed. It is shown that for a sufficiently large number of layers the reflection coefficient R may change from zero to R ≈1 for the n-s transition.