KelvinProbeForceMicroscopy Al2O3 Hafnium_dioxide STO Vacuum Mechanical hard_disk Biofilm Wonseok CVD 2d_materials cannabidiol Chemical_Vapor_Deposition Mfm food high_resolution StainlessSteel Techcomp Scratch Gong IRDetector HighAspect ThermalProperties Gallium Metal GalliumPhosphide NCM frequency_modulation Gallium_Arsenide Holes MolybdenumDisulfide ring shape Thermal Aggregated_molecules SSRM