EvatecAG mechanical property InsulatorFilm SKPM Fet LiquidCrystal Resistance self-assembled_monolayer Hole Permalloy cannabidiol Chungnam_National_University Zagreb Optoelectonics AdhesionEnergy Cross-section TPU PrCurve VerticalPFM PVAC Mechanical Ram PhaseImaging ForceVolume Lattice MetalCompound LateralPFM NUSNNI MoirePattern Composite high_resolution atomic_steps dielectric trench hetero_structure GaN