NCM\ Multiferroic_materials hard_disk CuSubstrate ScanningTunnelingMicroscopy Lattice China H-BN Ram FrictionalForce PhaseImaging MLCC PolyimideFilm Bio margarine Topography Granada FM_SKPM PFM AM-KPFM Formamidinium_lead_iodide CeNSE_IISc Heating PANI Varistor Bacteria medical Magnetic Phenanthrene MfmAmplitude Defect Nanostructure ULCA strontiu_titanate Scratch