@article{33637, keywords = {Single crystals, piezoelectricity, Ferroelectric thin films, Microelectromechanical devices, Barium titanate, Lead-free, Orientation dependences, Piezoelectric constants}, author = {J Ouyang and Ramamoorthy Ramesh and A.L Roytburd}, title = {Theoretical investigation of the intrinsic piezoelectric properties for tetragonal BaTiO 3 epitaxial films}, abstract = {{The orientation dependences of the converse longitudinal piezoelectric constant d 33,f , and the in-plane converse piezoelectric constant e 31,f , are calculated for tetragonal barium titanate epitaxial films. The calculations demonstrate that both e 31,f and d 33,f have their maximum values along an axis close to the (1 1 1) direction of the pseudo-cubic system, which are similar to the orientation dependence results for a tetragonal BaTiO 3 single crystal. The calculated piezoelectric constants for a (1 1 1) oriented BaTiO 3 epitaxial film (e 31}, year = {2006}, journal = {Applied Surface Science}, volume = {252}, number = {10}, pages = {3394-3400}, publisher = {Elsevier}, issn = {01694332}, doi = {10.1016/j.apsusc.2005.05.048}, note = {cited By 16}, language = {eng}, }