Major physical characteristics of Rochelle salt: the role of thermal strains

TL;DR

This study compares physical characteristics of Rochelle salt related to shear strain using an advanced Mitsui model that includes multiple strain components, providing insights into its dielectric behavior under electric fields.

Contribution

It introduces a modified Mitsui model incorporating diagonal strains, offering a more comprehensive understanding of Rochelle salt's physical properties.

Findings

Enhanced model explains shear strain effects more accurately.

Reevaluation of dielectric response under longitudinal electric field.

Comparison shows improvements over previous models.

Abstract

We compare the results for the related to the shear strain \epsilon_4 physical characteristics of Rochelle salt obtained within the recently developed modified two-sublattice Mitsui model that takes into account the strain \epsilon_4 and the diagonal components of the strain tensor \epsilon_1, \epsilon_2, \epsilon_3 with the results of the previous modification of the Mitsui model with the strain \epsilon_4 only. Within the framework of the model with the diagonal (thermal expansion) strains, we also reexamine the effects of the longitudinal electric field E_1 on the dielectric properties of Rochelle salt.