PUR SPMLabs Chromium LateralForceMicroscopy Layer MechanicalProperties membrane PinpointNanomechanicalMode self_healing FrequencyModulation Ceramic nanobar AEAPDES Chloroform kelvin probe force microscopy Semiconductor Carbon ScanningIon-ConductanceMicroscopy Cobalt-dopedIronOxide lift_mode HighAcpectRatio Electical&Electronics graphene_hybrid PinpointPFM Magnetostrictive Laser AdhesionForce DNA cross section I-VSpectroscopy FastScan fluorocarbon epitaxy Ucl Insulator