PhaseImaging Lateral_Force_Microscopy atomic_steps Granada ContactModeDot Switching Ni81Fe19 Reduction Mechanical&nanotechnology UnivCollegeLondon dichalcogenide Jason PolyStylene AnodizedAluminumOxide Piezoelectric BiFeO3 Sapphire Nanofiber chemical_compound MembraneFilter #EC AM_SKPM semifluorinated_alkane TipBiasMode INSP ForceMapping GalliumPhosphide fluorocarbon AIN Edwin Wildtype Display University_of_Regensburg conductive CalciumHydroxide