biocompatible StainlessSteel PVAP3HT Chungnam_National_University TemperatureControl PolycrystallineFerroelectricBCZT NtuEee EFM NiFe hard_disk BaTiO3 amplitude_modulation flakes thermal_property MolybdenumDisulfide Vacuum Etch DeflectionOptics FrictionForce HumanHair Copper TungstenThinFilmDeposition ContactModeDot Modulus Dopped Temasek_Lab BoronNitride MagneticForce Wonseok InsulatorFilm PhaseChange AM_SKPM PhaseTransition lithography NUS_Physics