semifluorinated_alkanes SurfaceOxidation chemical_compound PiezoelectricForceMicroscopy BismuthFerrite Polytetrafluoroethylene Pvdf Lattice Glass Copolymer PtfeMembrane ForceDistanceSpectroscopy Magnetic Battery Domain Galfenol alkanes Collagen Polyimide Microchannel SetpointMode ScanningKelvinProbeMicroscopy Filter hard_disk YttriaStabilizedZirconia OpticalWaveguide CalciumHydroxyapatite Sadowski Molybdenum Reduction Multiferroic_materials amplitude_modulation heterojunctions Polyvinylidene Subhajjit