First-principlesStudy of Piezoelectricity of Si3N4 Crystal
ZENG Yi-Ming, ZHENG Yan-Qing, XIN Jun, KONG Hai-Kuan,CHEN Hui, TU Xiao-Niu, SHI Er-Wei
Journal of Inorganic Materials . 2011, (2): 180 -184 .  DOI: 10.3724/SP.J.1077.2011.00180