FM_KPFM neodymium_magnets LiftMode PS_PVAC Insulator HDD Zagreb NusEce Yeditepe_University Gold piezoelectric force microscopy ForceVolumeImage conductive Wafer Gallium HexagonalBN PinpointPFM Reading ThermalProperties Polyvinylidene VerticalPFM HighAspect BiFeO3 Vacuum DentalProsthesis FloppyDisk SAM lithography Ito PolymerBlend Kevlar suspended_graphene Self-assembledMonolayer Anneal Fiber