Registration Number
0126U003340,
R & D request
Title
Revealing and systemic study of the effects of parametric crystal acoustics
Head
Rostyslav O. Vlokh, Доктор фізико-математичних наук
Registration Date
01-04-2026
Organization
Ivan Franko National University of Lviv
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The project aims to identify and systematically study the effects of parametric crystal acoustics. It is planned to develop the Jones matrices method to describe the propagation of acoustic waves in anisotropic materials, to carry out a phenomenological analysis of the influence of the electric field and mechanical stress on the change in the stiffness tensor (the propagation velocity of acoustic waves) in crystals of different symmetry groups, to develop methods for studying the effects of parametric crystal acoustics, to experimentally detect electro-acoustic and elasto-acoustic effects induced by spontaneous polarization and deformation, respectively, in the course of proper ferroelectric and ferroelastic phase transitions, to detect induced electro-acoustic and elasto-acoustic effects, to identify the influence of the electric field on the efficiency of acousto-optic diffraction.
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2026-04-01
