Permalloy PrCurve Chrome dielectric_trench Terrace ScratchMode cross section Kevlar ScanningTunnelingMicroscopy Ucl conductive molecular_self_assembly BreastCancerCell Co/Cr/Pt SAM Neodymium FrictionalForce AmplitudeModulation Phenanthrene CeNSE_IISc molecules Led CNT self-assembled_monolayer TappingMode Cell FAFailureAnlaysis align Memory CarbonNanotube LogAmplifier C_AFM Domain Gold Silver