Ferro- and piezoelectric properties of (Bi 3.25 Nd 0.75 )Ti 3 O 12 nanoplates epitaxially grown on Nb:TiO 2 (101) substrates by sputtering

Epitaxially a- and b-axis-oriented (Bi 3.25 Nd 0.75 )Ti 3 O 12 (BNT-0.75) films and nanoplates have been fabricated on four Nb:TiO 2 (101) substrates with 0–0.79 mass% Nb by high-temperature sputtering. It is shown from piezoresponse scanning force microscopy (PFM) measurements that the effective piezoelectric coefficients (d 33 ) at room temperature derived from the two linear gradients for the asymmetric displacement-voltage hysteresis loop are 11–13 pm/V.