ElectrostaticForceMicroscopy PiezoelectricForceMicroscopy GaP HexacontaneFilm Floppy #Materials Switching Ni81Fe19 amplitude_modulation SICM Singapore cooling frequency_modulation HighAcpectRatio Cobalt CaMnO3 LithiumNiobate WS2 Gold Lift FrequencyModulation Conducting Biology Battery C_AFM flakes HfO2 Graphite MolybdenumDisulfide mfm_amplitude SmalScan DLaTGS KelvinProbeForceMicroscopy VortexCore DNA