A piezoelectric element including a vibrating plate, a lower electrode, a
piezoelectric film and an upper electrode laminated in this order,
wherein the lower electrode, the upper electrode and the piezoelectric
film are formed by a perovskite type oxide while the vibrating plate is
formed by a metal oxide, and a junction interface is substantially absent
between the vibrating plate and the lower electrode, between the lower
electrode and the piezoelectric film and between the piezoelectric film
and the upper electrode.