Crystal Copper molecular_beam NanoLithography LeakageCurrent Sadowski SAM LiquidCell margarine AIN molecular_self_assembly WWafer Magnetic TPU KAIST Polyurethane Steps organic_polymer MagneticForce ContactMode ULCA TappingMode Optoelectronic CalciumHydroxide LateralForce Nickel Blood Korea temperature_control ForceMapping MolecularSelfAssembly AAO Inorganic single_layer Multiferroic_materials