flakes ElectroChemical semifluorinated_alkanes FrequencyModulation Mapping suspended_graphene Inorganic Stiffness Thermoplastic_polyurethane LFM Permalloy Tapping SiliconCrystal MESA structure Memory InorganicCompound PrCurve Growing Hafnium_dioxide Polyaniline UnivMaryland Tungsten optoelectronics HexagonalBoronNitride MonoLayer FFM SmallScan F14H20 Alloy SKPM Polystyrene organic_polymer Subhajjit SRAM India