ORIENTED PBTIO3 FILMS FROM METALORGANIC PRECURSORS

PbTiO3 films on various substrates were prepared by a metalorganic decomposition process using a multilayer spinning technique. Films on LaAlO3 and MgO substrates were preferentially c-axis oriented, and those on SrTiO3 have a completely c-axis orientation. The mechanism leading to the orientation was discussed. Contrary to the c-axis orientation, a-axis orientation can be induced on otherwise random films if they were annealed under pressure.