Gong Polarization KPFM conductive nanobar Sulfur PvdfBead PolycrystallineFerroelectricBCZT Tungsten_disulfide Ito Neodymium Foil IRDetector TappingMode Edwin Butterfly SKKU CNT Deposition MolybdenumDisulfide molecules Semiconductor Annealed Al2O3 University_of_Regensburg Polyimide Iron DataStorage Croatia CalciumHydroxide Magnets LightEmission OpticalModulator HexacontaneFilm SingleCrystal