DataStorage Korea Barium_titanate Biofilm polymeric_arrays Ferrite Polarization MBE PANI IVSpectroscopy Vacuum Inorganic_Compound multi_layer C_AFM LateralForce SoftSample Morphology TappingMode Bio Worcester_Polytechnic_Institute PatternedSapphireSubstrat Wafer Chromium Calcium HexacontaneFilm HighAspect PMNPT DeflectionOptics Edwin #EC PolymerBlend EFMAmplitude light_emitting VerticalPFM CP-AFM