A DFT Investigation of Vibrational Nature and Ferroelectric Phase Transition of BaTiO 3 and PbTiO 3
XIE Ying 1, 2, QIANG Liang-Sheng, ZHONG Hua 1,2, YU Hai-Tao 2,FU Hong-Gang* ,1,2
Acta Chimica Sinica . 2005, (6): 455 -459 .