AmplitudeModulation Electrode PinpointPFM India MechanicalProperties Christmas HighAspect Lateral_Force_Microscopy Hole CVD molecules Steps Tin sulfide Change SFAs Magnetic Force Microscopy Mfm Scanning_Thermal_Microscopy INSP LateralPFM DomainSwitching PFM solar_cell StrontiuTitanate Piezoelectric HACrystal Defects KelvinProbeForceMicroscopy optoelectronics NCM temp_control self-assembly AlkaneFilm heterojunctions LightEmiting