CNT Bismuth Optic Aluminium_Oxide Zhi aluminum_nitride INSP Force-distance Morphology Annealed MultiferroicMaterials MfmPhase Perovskite SurfaceOxidation PhaseImaging TungstenDeposition TemperatureControl Dopped ito_film AdhesionForce phase_change lift_mode CVD KevlarFiber Polystyrene temp_control BTO vertical_PFM BiasMode Vanadate FastScan CastIron Barium_titanate Self-assembledMonolayer light_emitting