Beads frequency_modulation AM_KPFM Terrace Christmas MoirePattern MembraneFilter Metal Composition Ferrite PrCurve Magnetostrictive Sic Hafnium_dioxide Sphere LiquidCell Wang lithography InorganicCompound Magnets INSP 2-vinylpyridine BTO vertical_PFM ScanningSpreadingResistanceMicroscopy Nanopattern ring shape YttriaStabilizedZirconia LateralForceMicroscopy fe_nd_b Deposition VerticalPFM NUS Gold polymeric_arrays