FrequencyModulation SingleLayer F14H20 molecules HBN BaTiO3 fluoroaalkane ElectrostaticForceMicroscopy Cell BTO Scanning_Thermal_Microscopy Materials NeodymiumMagnets cooling Pinpoint TiO2 Steps LiBattery FastScan Collagen Step MultiferroicMaterials Glass Sic Semiconductor HighAspect Sadowski CastIron ScanningTunnelingMicroscopy Thermoplastic_polyurethane Non-ContactMode Fe_film MBE self_assembly Chromium