UnivCollegeLondon alkanes SurfaceChange Piezo Solar Pzt BismuthVanadate Morphology SingleCrystal PolycrystallineFerroelectricBCZT Chungnam_National_University Battery Materials atomic_steps C36H74 Ferrite NUS_Physics Nickel Annealing Austenite AM_SKPM Defects organic_polymer Polytetrafluoroethylene self-assembly lift_mode silicon_oxide ScanningKelvinProbeMicroscopy hard_disk NTU ItoGlass C_AFM silicon_carbide AtomicSteps Mapping