Perovskite engineering : design of novel lead-free ferroelectric by the control of the chemical bonds

基于基于化学键和晶体结构的新思路，获得了钙钛矿型结构的无铅铁电和压电材料的策略。结果发现了许多候选材料，并对已知铁电材料的演化机理进行了新的解释。利用脉冲激光沉积技术，还成功地制备了传统固态技术无法获得的新型化合物薄膜。

Strategy for lead-free ferroelectric and piezoelectric materials with perovskite-type structure was obtained based on the new idea based on the chemical bonds and crystal structures. As a result, many candidate materials were found out as well as new interpretation on the mechanism for the evolution of known ferroelectric materials. Thin films of novel compounds, which are not available by the conventional solid state technique, were also successfully obtained by the pulsed laser deposition technique.