FM-KPFM Gallium_Arsenide HDD PolymerPatterns ElectrostaticForceMicroscopy Au111 University_of_Regensburg piezoelectric force microscopy self-assembled_monolayer HOPG SiliconeOxide Ferroelectric #Materials Wonseok margarine Dopped Hexacontane NusEce AM_KPFM Polyethylene EFM SICM CuSubstrate cooling FrictionalForceMicroscopy TemperatureControllerStage Gold PinPointMode DiffractiveOpticalElements cannabinoid FrequencyModulation Polytetrafluoroethylene INSP HighResolution DeoxyribonucleicAcid