MfmAmplitude PVAC HexagonalBoronNitride SetpointMode Memory food Domain Force-distance PinpointPFM Monisha vertical_PFM NCM IndiumTinOxide Hysteresys Tin sulfide PpLdpe Temperature BiasMode doped ThermalProperties LogAmplifier Organic Solution InorganicCompound Water YszSubstrate bias_mode plastics PatternedSapphireSubstrat FM-KPFM ferromagnetic ElectroChemical UTEM Ucl SSRM