GROWTH OF FCC(111) ON BCC(110) - INFLUENCE OF GROWTH AND ANNEALING TEMPERATURE ON EPITAXY AND SURFACE-MORPHOLOGY FOR PD ON CR

The effects of growth versus annealing temperature on epitaxial relati onship and surface morphology were studied for Pd(lll) films on Cr(110 ) surfaces. While the epitaxial orientation of the Pd films depends on film thickness as well as on growth temperature, subsequent annealing has no effect on the epitaxial orientation. Instead, additional annea ling of room temperature grown films takes the surface morphology from an island to a terrace shape, which was not observed for samples dire ctly grown at elevated temperatures. These different effects that grow th and annealing temperature have, help understanding the resulting st ructure and morphology of the heteroepitaxial system. (C) 1998 Elsevie r Science B.V. All rights reserved.