Patent ID: 8783838

Claim:
A liquid ejecting head comprising: a pressure generating chamber communicating with a nozzle aperture; and a piezoelectric element including a piezoelectric layer and an electrode, the piezoelectric layer including a buffer layer containing an oxide containing Bi and Co and disposed on the electrode, and a layer disposed on the buffer layer and containing a perovskite oxide containing Bi, Ba, Fe and Ti, wherein the buffer layer includes at least one composition expressed by the following general formulas: BiCoO 3 (1); (Bi,MA)CoO 3 (2); Bi(Co,MB)O 3 (3); (Bi,MA)(Co,MB)O 3 (4); and MA in formulas (2) and (4) represents at least one metal element other than Bi, and MB in formulas (3) and (4) represents at least one metal element other than Co.