“…Among various buffer layer materials, metallic perovskitetype oxides, such as La 0.5 Sr 0.5 CoO 3 (LSCO) [6], LaNiO 3 (LNO) [7], YBa 2 Cu 3 O 7−ı (YBCO) [8], and SrRuO 3 (SRO) [9], have been used as the epitaxial template for the growth of ferroelectric films and bottom electrodes. For the selection of bottom electrodes, pseudocubic LNO, with a lattice parameter of 0.384 nm, is a conductive oxide that shows promise.…”