Piezoelectric material, piezoelectric element, liquid discharge head, liquid discharge apparatus, vibration wave motor, optical instrument, vibration apparatus, dust removing apparatus, imaging apparatus and electronic device

A piezoelectric material comprising:

• a perovskite-type metal oxide represented by the following general formula (1);
• Bi;
• and
• Mn,
• wherein a content of the Bi is 0.1 mol % or more to 0.5 mol % or less with respect to 1 mol of the metal oxide,
• wherein a content of the Mn is 0.3 mol % or more to 1.5 mol % or less with respect to 1 mol of the metal oxide, and
• wherein the piezoelectric material satisfies (L4−L5)/L5≧0.05 and (L8−L9)/L9≧0.05 when the lengths of twelve Bi—O bonds with Bi that is located at a 12-fold site with respect to O in a perovskite-type unit cell as a starting point are taken to be L1 to L12 in length order:
• (Ba1-xM1x)(Ti1-yM2y)O3 (1)
• wherein 0≦x≦0.2, 0≦y≦0.1, and M1 and M2 are mutually different metal elements which have a total valence of +6 and are selected from other elements than Ba, Ti, Bi and Mn.