Gong MLCC Oxidation Ecoli BTO PFM molecule NtuEee PhaseChange self-assembly Sphere AmplitudeModulation BiFeO3 Ucl Nanofiber MagneticForceMicroscopy Kevlar Array PhaseImaging CeNSE_IISc TPU Sic Hafnium_dioxide GaN MagneticPhase SelfAssembly Pattern UnivMaryland Sio2 food FloppyDisk SurfaceOxidation polyvinyl acetate lift_mode Thermal