Deposition by laser ablation and properties of 0.6Pb(Mg1/3Nb2/3)O3-0.4PbTiO3 films

Abstract

Lead magnesium niobate titanate, 0.6Pb(Mg1/3Nb2/3)O3-0.4PbTiO3 (PMN-PT) thin films have been prepared on MgO crystal and Pt sheet at low temperatures of 450 - 600 degrees Celsius by laser ablation method. PMN-PT thin films have preferential orientation of a-axis on MgO(100) and have (100), (200) and (110) orientations on Pt. Surface morphology of PMN-PT films on Pt has the spherical grain of size 100 - 200 nm. Dielectric constants of 0.6PMN-0.4PT thin films is about 940 at 1 MHz and room temperature.