Pinpoint PFM VortexCore I-VSpectroscopy PtfeMembrane Defects membrane ito_film PhthalocyaninePraseodymium Croatia IVSpectroscopy HighAspect dielectric trench GaN StainlessSteel CompactDisk CalciumHydroxyapatite ScanningKelvinProbeMicroscopy Multiferroic_materials lift_mode ForceDistanceSpectroscopy Heating Fet plastic mono_layer CarbonNanotube PolymerBlend Sperm fifber DataStorage Bmp Force-distance polymeric_arrays CNT Alloy ring shape