The domain configurations of (Na0.85K0.15)0.5Bi0.5TiO3 thin film with different bottom electrodes

- The NBKT15 thin films with typical perovskite polycrystalline phase were grown on LNO and Pt electrodes.
- The NBKT15 thin film on LNO electrode exhibits better crystallinity, stronger remnant polarization and smaller leakage current.
- The domain configurations of single grain are easier to be reversed by electric field for the NBKT15 thin film on LNO electrode.
- The domain switching criterion was adopted to explain the mechanisms of electric-generated domain switchings.