Abstract
In this study, we examine the growth conditions for Pb 0.92La 0.08Zr 0.4Ti 0.6O 3 thin films with a linear electro-optical response. Films grown on SrTiO 3(100) substrate show good crystalline quality and surface smoothness, if deposited within a narrow range of substrate temperatures around 530 °C. Such films had a (002) rocking curve full width at half maximum less than 0.2°, and a surface roughness less than 0.4 nm. X-ray photoelectron spectroscopy analysis confirmed the absence of surface impurity phases and revealed a single oxidation state for Pb 2+, Zr 4+, and Ti 4+cations. Good crystalline quality and a smooth film surface are required for the use of these materials in optical device applications.
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