Local structure analysis of PbTiO in high-temperature cubic phase

Yoneda, Yasuhiro   ; Taniguchi, Hiroki*; Kitanaka, Yuki*; Noguchi, Yuji*

High-energy X-ray diffraction study was performed on lead titanate (PbTiO). Short-range order structure was revealed using atomic pair-distribution function (PDF) method. In the high-temperature cubic phase, there is a large deviation between local and average structure. Especially, Pb atoms deviated from the cubic lattice framework, but establish Pb-O-Pb random network.