CuSubstrate Conduct PhaseChange PolyvinylideneFluoride PUR Mosfet FM-KPFM AlkaneFilm SiliconCrystal BismuthFerrite Temasek_Lab SKKU MultiferroicMaterials atomic_layer SKPM Litho Friction ForceVolumeMapping Moire SFAs NCM\ Cobalt AM-KPFM ForceMapping University_of_Regensburg Au111 Conducting PS_LDPE Layer Molybdenum_disulfide BaTiO3 kelvin probe force microscopy thermal_property NTU DataStorage