Abstract
In recent years, there has been great interest in developing different kinds of phononic crystals (PCs) with advanced ultrasound properties. In this study, we examined the possibility of creating a periodic domain structure controlled by an external electric field. The electric field was induced using crossed electrodes on the surface of a LiTaO3 single crystal. We investigated the domain formation process, in which the external electric field was smaller than the coercive electric field, and spontaneous polarization is not inverted. We proposed a new type of surface acoustic wave device and studied the parameters of interaction of a low-velocity shear horizontal acoustic wave with an electroinduced domain structure. This new kind of acoustic device allows the study of various ultrasound effects and the development of advanced controllable acoustoelectronic devices.
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