Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator

摘要

A piezoelectric material contains a first component that is a rhombohedral crystal that is configured to have a complex oxide with a perovskite structure and Curie temperature is set to be Tc1 and a second component that is a crystal other than a rhombohedral crystal that is configured to have a complex oxide with the perovskite structure and Curie temperature is set to be Tc2, in which the absolute value of the difference between Tc1 and Tc2 |Tc1-Tc2| is equal to or lower than 50°C, and a composition near an MPB line is provided in a phase diagram that employs a composition ratio of a first component to a second component for the horizontal axis and temperature for the vertical axis.