STM PS_PVAC BreastCancerCell Oxide Steps amplitude_modulation ScratchMode Cancer Calcite CancerCell ForceDistanceSpectroscopy 2dMaterials lithography Tin sulfide Hafnium_dioxide Mechinical Polymer TiO2 ScanningIon-ConductanceMicroscopy temperature_control AdhesionEnergy hard_disk_media VerticalPFM LiquidCell HighResolution HydroGel HfO2 Wildtype Dental FrictionalForceMicroscopy Domain PpLdpe P3HT MeltingPoint Switching