PIEZOELECTRIC ELEMENT, METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, INKJET HEAD, AND INKJET PRINTER

摘要

This piezoelectric element (27) has a piezoelectric body layer (for example a piezoelectric thin film (25)) on an underlayer (for example a bottom electrode (24)). The piezoelectric body layer has orienting characteristics that are the same as those of the underlayer and orienting characteristics that differ from those of the underlayer. In the thickness direction of the piezoelectric body layer, the orienting characteristics that are the same as those of the underlayer are biased to the underlayer side.