Dielectric and Piezoelectric Properties of Sn₂P₂S₆ Single Crystals

Abstract

Dependence investigations of the hydrostatic piezoelectric coefficient (d _h ) and the dielectric permittivity (ϵ) on pressure (p) are presented. Calculations of the voltage piezoelectric coefficient g _h (p,T) are made. It was determined, that Sn₂P₂S₆ single crystal has large values of coefficient (g _h ). That allows us to use Sn₂P₂S₆ single crystals as piezoelectric sensors in the wide temperature and pressure range.

Keywords:

• Ferroelectric single crystal Sn₂P₂S₆
• hydrostatic piezoelectric coefficients
• dielectric permittivity

PACS:

• 77.22.Ej
• 0 77.80.Dj

Acnowledgments

This work was supported by the Grant Agency of the Czech Republic (GACR 202/03/0569) and by the Ministry of Education of Czech Republic (Project Code MSM 242200002).