| abstract |
PROBLEM TO BE SOLVED: To provide a lead-free piezoelectric element using a lead-free piezoelectric material that is stably driven in a wide practical temperature range. A piezoelectric element having a first electrode, a piezoelectric material, and a second electrode, wherein the piezoelectric material has the following general formula (1): general formula (1) (Ba1-xCax) a (Ti1-yZry) ) O3 (1.00 ≦ a ≦ 1.01, 0.02 ≦ x ≦ 0.30, 0.020 ≦ y ≦ 0.095, and y ≦ x). As a component, Mn is contained in the metal oxide, and the content of Mn is 0.02 part by weight or more and 0.40 part by weight or less in terms of metal with respect to 100 parts by weight of the metal oxide. A characteristic piezoelectric element. [Selection] Figure 4 |