First-principles study of polarization and piezoelectricity behavior in tetragonal PbTiO3-based superlattices*

Project supported by the National Natural Science Foundation of China (Grant No. 11372085) and the Shenzhen Science and Technology Project (Grant No. JCYJ20150625142543461).

Zhu Zhenye
       

(color online) The proportion of the piezoelectric contributions from PbTiO3 component in PbTiO3/KNbO3 and PbTiO3/LaAlO3 versus c-axis length change.