HanyangUniv SICM TemperatureControlledAFM suspended_graphene Sadowski Temperature Tin sulfide EFM rubber ReflexLens MechanicalProperty phase_change Dr.JurekSadowski chemical_compound Insulator Magnetic Force Microscopy Chloroform kelvin probe force microscopy cannabidiol doped SAM Patterns I-VSpectroscopy Chungnam_National_University molecules HiVacuum Graphene F14H20 Lattice China SiWafer aluminum_nitride Lanthanum_aluminate Switching STM