Birefringent bistability in (Pb,La)(Zr,Ti)O3 thin films with a ferroelectric-semiconductor interface

Abstract

We report a birefringent bistability exhibited in ferroelectric thin films with a ferroelectric-semiconductor interface. Such birefringent bistability is observed in (Pb,La)(Zr,Ti)O3 (PLZT) thin films which are sandwiched between a platinum and a semiconducting indium-tin oxide (ITO) electrode. The magnitude of the birefringence between the two remanent states is approximately 0.9×10−3. The Pt/PLZT/ITO structure features a nonvolatile electro-optic memory operation, i.e., the switching between the two remanent birefringent states with bipolar electric pulses.

Ferroelectric Properties of Au/Bi3.25La0.75Ti3O12/ITO Thin Film Capacitors

“…Abnormal increase of polarization magnitude is observed from the fatigue characteristics. This abnormality might be attributed to the formation of a p-n junction with ITO (n-type) and the ferroelectric material (p-type) that creates a built-in bias inside the ferroelectric film or near the interface, concentrating the polarity in the direction of the ITO layer [8].…”

Electro-optic effect in c-axis oriented ZnO thin films prepared by rf magnetron sputtering

“…A number of materials including lithium niobate (LiNbO 3 ), lead lanthanum zirconate titanate (PLZT), lead zirconate titanate (PZT), potassium dihydrogen phosphate (KDP), ammonium dihydrogen phosphate (ADP), barium titanate (BaTiO 3 ) and various organic polymers have exhibited attractive birefringent electro-optic (EO) effect when deposited on suitable substrates [1][2][3][4]. These materials have been the focus of EO studies for applications in optical modulation.…”

Optical properties of epitaxial plzt thin films

“…It is considered that the composition of PLZT 10/65/35 approaches close to the cubic phase. It has been reported that PLZT bulk ceramics or thin films have polarization dependence [1,[3][4][5][6]. However, the (100/001)-oriented epitaxial PLZT films indicate less polarization dependence of the EO coefficient.…”