SAM 2d_materials alkanes Indent domain_switching PtfeMembrane ContactModeDot ElectrostaticForceMicroscopy MfmPhase SiWafer Change Bismuth Etch Holes PhaseChange FrictionalForceMicroscopy UTEM Lift Indium_tin_oxide Copper OpticalElement Molybdenum_disulfide MagneticForceMicroscopy molecules Permalloy Korea InsulatorFilm Worcester_Polytechnic_Institute Sic Magnetostrictive Typhimurium hetero_structure NanoLithography TipBiasMode Spain