MultiferroicMaterials Bismuth Mechanical NTU MBE Display Conducting AdhesionForce StainlessSteel PpLdpe Wonseok KelvinProbeForceMicroscopy SetpointMode light_emitting mono_layer Magnetostrictive plastics SFAs ULCA blended polymers MolecularSelfAssembly Ni81Fe19 cross section Hysteresys HardDiskMedia Potential alkanes PolycrystallineFerroelectricBCZT Glass Dopped DeoxyribonucleicAcid ThermalProperties Sic Pvdf hard_disk