TH-waves propagation in crystals subject to initial fields

Abstract

In this paper, we are dealing with the study of the coupling conditions for the propagation of planar-guided waves in a piezoelectric semi-infinite plane subject to initial electro-mechanical fields. We analyze the propagation of non-piezoelectric TH waves in anisotropic crystals, subject to an initial mechanical field, for two cases: parallel-sided plate, resp. layer on a substrate. The last case is related to the well-known Love type wave described in seismology problems. We obtain and analyze the dispersion relations for various classes of anisotropy.