World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
Chemistry. 2013 Apr 2;19(14):4446-50. doi: 10.1002/chem.201203421. Epub 2013 Feb 28.
A new class of highly stable ferroelectric material, that is, a mesostructured SrTiO(3)/BaTiO(3) composite film, obtained by a surfactant-templated sol-gel method is reported. Due to the concave surface geometry and abundant hetero-interface between SrTiO(3) (ST) and BaTiO(3) (BT) phases, a large number of strains can be created in the composite film, thereby leading to dramatic enhancement of ferroelectric property (see scheme).
报道了一种新型的高度稳定铁电材料，即通过表面活性剂模板溶胶-凝胶法获得的介孔 SrTiO(3)/BaTiO(3) 复合薄膜。由于 SrTiO(3) (ST) 和 BaTiO(3) (BT) 相之间的凹面几何形状和丰富的异质界面，复合薄膜中可以产生大量应变，从而显著增强铁电性能（见方案）。
