Piezoelectric resonance in Rochelle salt: the contribution of diagonal strains
A. P. Moina
TL;DR
This paper models the dynamic dielectric response of Rochelle salt X-cuts considering shear and diagonal strains, explaining experimental phenomena like crystal clamping, piezoelectric resonance, and microwave dispersion.
Contribution
It introduces a two-sublattice Mitsui model incorporating shear and diagonal strains to explain Rochelle salt's resonance behaviors.
Findings
Lowest resonant frequency linked to shear mode b5_4
Model accurately describes crystal clamping effects
Explains microwave dispersion phenomena
Abstract
Within the framework of two-sublattice Mitsui model with taking into account the shear strain and the diagonal strains and , a dynamic dielectric response of Rochelle salt X-cuts is considered. Experimentally observed phenomena of crystal clamping by high frequency electric field, piezoelectric resonance and microwave dispersion are described. It is shown that the lowest resonant frequency is always associated with the shear mode
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