A comparison between tetragonal-rhombohedral and tetragonal-orthorhombic phase boundaries on piezoelectricity enhancementDezhen Xue, Yumei Zhou, Jinghui Gao, Xiangdong Ding and Xiaobing RenEPL, 100 1 (2012) 17010DOI: https://doi.org/10.1209/0295-5075/100/17010