来源：X-MOL
Different lanthanum manganite-based thin films were prepared by polymer assisted deposition (PAD) and spin coating on the monocrystal SrTiO3 (001) and Si substrates, whereas double-layered film was obtained by combining PAD and sol-gel method to deposit second perovskite Ba0.7Sr0.3TiO3 layer. Valence states of ions were probed by X-ray absorption spectroscopy (XAS) at the SOLARIS National Synchrotron Radiation Centre in Kraków, Poland. It was found that manganese valence depends on substrate type, doping level, and BSTO buffer layer which is important to obtain single-phase complex oxide thin films.