FrictionForce single_layer membrane thermal_conductivity MechanicalProperty CrAu SRAM Domain pinpoint mode Defect Inorganic_Compound plastic Fet H-BN piezoelectric force microscopy lift_mode Vanadate CopperFoil Reduction PhaseTransition polymeric_arrays PANI Polyethylene Plug Multiferroic_materials TriGlycineSulphate ring shape Sio2 Phthalocyanine Galfenol Celebration STM AM-KPFM Korea BariumTitanate