Heteroepitaxial Growth of c-Axis-Oriented BaTiO3:Ce/YBa2Cu3O7-x Bilayer Structure on SrTiO3(100) by Pulsed Laser Deposition

Abstract

c-axis-oriented BaTiO 3 :Ce/YBa 2 Cu 3 O 7-x bilayers have been epitaxially grown on the SrTiO 3(100) substrates by pulsed laser deposition. The crystal structure and epitaxial orientation of the films have been analyzed by the XRD θ/2θ, ω and ϕ scans, and the results indicate that the bilayer thin films have high degree of c-axis-oriented epitaxial crystalline structure. The surface morphology of the thin films was revealed by scanning electron microscopy (SEM). The ferroelectricity of the BaTiO 3 :Ce thin films was verified by the P-E hysteresis loop.