Phosphide Nickel semifluorinated_alkanes conductive semifluorinated alkane Calcite MolybdenumDisulfide CalciumHydroxyapatite Barium_titanate Heating alkanes exfoliate Domain Plug ContactMode Nanostructure HexacontaneFilm Potential PS_PVAC mechanical property MechanicalProperties GaP BFO tip_bias_mode Lateral 2-vinylpyridine Iron FrictionalForce GalliumPhosphide cross section LogAmplifier Force-distance Biology Wang MembraneFilter