Abstract
Highly (0 0 1)-oriented Bi3.15Nd0.85Ti3O12 (BNdT) films were deposited directly on single-crystalline Nb-doped SrTiO3 (STON) conductive substrates by chemical solution deposition. The electrical characteristics of BNdT films were studied and compared with random-oriented BNdT films on Pt/TiO2/SiO2/Si substrates. BNdT films on STON substrates show much smaller remanent polarization and ϵr values. This indicates that dominant polarization of BNdT is not along the (0 0 1)-axis. However, (0 0 1)-oriented BNdT films exhibit better retention characteristics, which can be ascribed to the better film/electrode interface between BNdT and STON.
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