Theoretical Treatment of the Movement of 180° Domain in BaTiO₃ Single Crystal

Abstract

A theoretical treatment was proposed for the movement of wedge-shaped 180° domains in BaTiO₃ single crystal. It was proved that the experimental relations found by Merz can be explained satisfactorily by considering this new mechanism of the domain motion. Further a few quantitative examinations were made and it was ascertained that there is no clear quantitative inconsistency between the theoretical relations and Merz’s experimental relations.