ContactModeDot LateralForceMicroscopy Styrene Array doped Moire Friction SrO Platinum Scratch LightEmiting Plug Annealing CrAu Tin disulfide FM_KPFM AIN IMT_Bucharest PyroelectricDetector Polyethylene Grain Switching strontiu_titanate C36H74 temperature controller AFM ShenYang biocompatible LiquidCell CaMnO3 Praseodymium CeNSE_IISc mfm_amplitude kelvin probe force microscopy PinPointMode fluorocarbon