dielectric trench Yttria_stabilized_Zirconia NUSNNI semifluorinated_alkanes HOPG frequency_modulation CuSubstrate Aggregated_molecules fluorocarbon LFM CuParticle Polypropylene Biofilm Lattice GaAs DNAProtein PMNPT Copper Hysteresys Singapore PFM DataStorage Change Magnets temp_control PinpointNanomechanicalMode block_copolymer Fendb SiliconOxide Dimethicone Phosphide KAIST conductive ImideMonomer AM_KPFM