Single crystals of perovskites

1School of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China 2Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China 3School of Materials and Energy, Yunnan University, Kunming 650500, China 4School of Materials Science and Engineering, Beihang University, Beijing 100191, China