Alkane PolyvinylAcetate NUS_Physics KPFM TungstenDeposition FrictionForce SSRM FrictionalForce LogAmplifier CaMnO3 chemical_compound InsulatorFilm cannabinoid Ceramic Chungnam_National_University SurfaceOxidation MechanicalProperty Phase CeNSE_IISc Nanostructure AM_SKPM IVSpectroscopy Biofilm Stiffness AAO flakes Fendb ElectroChemical Domain tip_bias_mode CrystalGrowing Ferroelectric MoirePattern MembraneFilter OrganicSemiconductor