Abstract
Distribution of crystal structure along the thickness direction for the epitaxial Pb(Zr,Ti)O3 thick film on (111) c SrRuO3//(111)SrTiO3 substrate with Zr/(Zr + Ti) = 0.42 was investigated using micro-Raman spectroscopy. The XRD result showed that the Pb(Zr,Ti)O3 thick film consisted of the mixture of the tetragonal and rhombohedral phases. In addition, it was revealed by micro-Raman spectroscopy that the rhombohedral phase was dominant near the substrate. This trend was opposite from that of the Pb(Zr,Ti)O3 thick film on (100) c SrRuO3//(100)SrTiO3 substrate. These results indicate that the distribution of crystal structure along the thickness direction for the Pb(Zr,Ti)O3 films depends on the crystal orientation of the films.
Acknowledgments
This work partly was supported by the Sasagawa Scientific Research Grant from the Japan Science Society.