A novel approach to control the grain size of oxide thin film materials has been investigated. Perovskite BaTiO3 shows interesting grain structures when deposited on gold predeposited, (111)-oriented, singlecrystal SrTiO3 substrates. Solid oxide film
s grow epitaxially on patterned seed layers and show variations in grain size relative to the films deposited on SrTiO3 directly.
