FM_SKPM C36H74 Thermoplastic_polyurethane Aggregated_molecules piezoelectric force microscopy Jason ContactMode cross section Hysteresys conductive MagneticPhase exfoliate Fet Ito SPMLabs amplitude_modulation Optical Celebration SurfaceChange Au111 pulsed_laser_deposition silicon_oxide Polyvinylidene Austenite Conductive AFM Domain Mechanical CeramicCapacitor OpticalWaveguides membrane light_emitting WS2 Bacteria Deposition PVAC