Liquid ejecting head, liquid ejecting apparatus and piezoelectric element, and method for manufacturing piezoelectric element

摘要

A liquid ejecting head includes a pressure chamber communicating with a nozzle aperture and a piezoelectric element. The piezoelectric element includes a piezoelectric member, and a first and a second electrode disposed to the piezoelectric member. At least one of the first and second electrodes contains platinum. The piezoelectric member comprises a complex oxide notionally comprising potassium sodium niobate and bismuth ferrate. In the complex oxide, the molar ratio of iron to the sum of niobium and iron is in the range of 3% to 10%, and the molar ratio of the sum of potassium and sodium to niobium is in the range of 103% to 115%.