PatternedSapphireSubstrat C_AFM Biofilm Writing VortexCore TungstenThinFilmDeposition HexacontaneFilm Korea GaN exfoliate ChemicalCompound Indent PDMS block_copolymer Magnetic Force Microscopy Zagreb Conduct Temperature InsulatorFilm Multiferroic_materials PolyvinylAcetate Protein piezoelectric force microscopy Tungsten_disulfide MagneticArray Melt IndiumTinOxide CHRYSALIS_INC ito_film Deposition gallium_nitride SetpointMode NiFe FAFailureAnlaysis lift_mode