First-principe clculation has been perforemed on the growth and adsorption modes of a Fe film grown on BaTiO3 (001) different terminations on the basis of transmission electron microscopic observation. The interface atomic structure and bonding configurations at the interface were calculated. The interface Fe-O bond was found to affect the adsorption ability, and the results indicated that the TiO2-terminated surface was more favorable for epitaxial growth of Fe film. The Fe-O bond was stronger on the BaO- terminated surface than on the TiO2 termination.
修改评论