Ferro- and piezoelectric properties of (Bi3.25Nd0.75)Ti3O12 nanoplates epitaxially grown on Nb:TiO2(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.