The origin of the spontaneous electric polarization

TL;DR

This paper introduces a new microscopic theory to explain the origin of spontaneous electric polarization in solids, linking atomic collisions and crystal structure to critical temperatures, validated against experimental data.

Contribution

It presents a novel microscopic model based on elastic collisions and chemical composition to predict critical temperatures for ferroelectric and antiferroelectric materials.

Findings

Model accurately predicts critical temperatures

Good agreement with experimental results

Provides new insights into polarization mechanisms

Abstract

The phenomenon of the spontaneous electric polarization (ferro- and antiferroelectricity) is one of the fundamental problems of the solid-state physics. Although, there has been lot of experimental and theoretical progress, still needs to be made to understand the origine of the spontaneous electric polarization. A new microscopic theory that is based on the perfectly elastic electron-atom and atom-atom collisions, crystal structure and the chemical composition of the compounds is developed to calculate the critical temperatures for materials with spontaneous electric polarization. The reliability of this model was examined by comparing the experimental results with calculated values.