Journal of Crystal Growth, Vol.367, 24-26, 2013
Highly (111)-oriented multiferroic BiFeO3 thin film on a glass substrate
BiFeO3 (BFO) thin films were deposited on Pt/Ta/glass substrates by pulsed laser deposition. To grow highly (111)-oriented and good adhesive Pt bottom electrodes, Ta adhesion layers were used between Pt bottom electrodes and glass substrates. On the highly (111)-oriented Pt bottom electrodes, highly (111)-oriented polycrystalline BFO thin films were obtained as confirmed by X-ray diffraction experiments. The BFO thin film exhibited a high ferroelectric polarization (2P(r) approximate to 56 mu C/cm(2)). The highly (111)-oriented BFO thin film also showed a ferromagnetic hysteresis loop and a ferroelectric domain size of approximately 30-40 nm, which is equivalent to 0.25 Tbit/in(2). (C) 2013 Elsevier B.V. All rights reserved.
Keywords:Atomic force microscopy;X-ray diffraction;Laser epitaxy;Perovskites;Ferroelectric materials