Optical study on domain switching of ferroelectric triglycine sulfuric acid and Rochelle salt.

Presents a study which examined the domain switching of ferroelectric triglycine sulfuric acid and Rochelle salt by observing optical gyration along the ferroelectric axes and measuring rotation of the indicatrices around the same axes. Method for distinguishing the twinning mechanism of the ferroelectric domains; Change of gyration and orientation of indicatrix; Observations of the optical phenomena.