Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus

Abstract

A piezoelectric element includes: a lower electrode; a lower piezoelectric body including K, Na, and Nb; an upper piezoelectric body including K, Na, and Nb; and an upper electrode, in which the lower electrode, the lower piezoelectric body, the upper piezoelectric body, and the upper electrode are provided to be arranged in this order in a lamination direction, and when an average concentration of K in the lower piezoelectric body is represented by K1, an average concentration of Na in the lower piezoelectric body is represented by Na1, an average concentration of K in the upper piezoelectric body is represented by K2, and an average concentration of Na in the upper piezoelectric body is represented by Na2, K1/(K1+Na1)>K2/(K2+Na2) is satisfied.

Dependencies are inferred from the claim text.