INSP hard_disk Nanofiber SurfaceOxidation STM Reduction MagneticForceMicroscopy Pipette BaTiO3 Steps single_layer mechanical property ferromagnetic Writing SICM OpticalModulator Force-distance multi_layer Filter LateralForceMicroscopy Fiber Ito Corrosion Moire Typhimurium alkanes Annealed Change domain_switching LFM MESA structure epitaxy Hysteresys MeltingPoint China