FM-KPFM AAO ForceDistanceSpectroscopy LateralForce MultiferroicMaterials amplitude_modulation cannabidiol contact Gallium DNA FuelCell DOE CastIron CNT BlockCopolymer Calcium Bmp alkanes AdhesionEnergy Potential SmallScan StainlessSteel LiBattery Iron MechanicalProperty ConductingPolymer STO SKKU oxide_layer Nanotechnology margarine Chemical_Vapor_Deposition Ananth Moire Leakage