Dielectric, electromechanical and elastic properties of K$_{1-x}$(NH$_4$)$_x$H$_2$PO$_4$ compounds

R. Levitskii; I. Zachek; L. Korotkov; D. Likhovaja; A. Vdovych; S. Sorokov; Z. Trybula; Sz. Los

paper

Dielectric, electromechanical and elastic properties of K $_{1 - x}$ (NH $_{4}$ ) $_{x}$ H $_{2}$ PO $_{4}$ compounds

arXiv:1401.6403

Abstract

We present the results of the thermodynamic theory of piezoelectric ferroelectrics and of the phenomenological theory of thermodynamic characteristics of the KH $_{2}$ PO $_{4}$ type ferroelectrics. Available experimental data for the dielectric, piezoelectric, and elastic characteristics of the KH $_{2}$ PO $_{4}$ type ferroelectrics and NH $_{4}$ H $_{2}$ PO $_{4}$ type antiferroelectrics are described using the proposed microscopic theory of these crystals. Using the results of the thermodynamic theory and experimental data we calculate the dielectric, piezoelectric, and elastic characteristics of the K $_{1 - x}$ (NH $_{4}$ ) $_{x}$ H $_{2}$ PO $_{4}$ type systems.

arXiv comment26 pages, 18 figures

Dielectric, electromechanical and elastic properties of K1−x​(NH4​)x​H2​PO4​ compounds

Abstract

Dielectric, electromechanical and elastic properties of K $_{1 - x}$ (NH $_{4}$ ) $_{x}$ H $_{2}$ PO $_{4}$ compounds