mechanical_property Carbon Flake ForceMapping hard_disk TemperatureControl Galfenol ScanningSpreadingResistanceMicroscopy 2d_materials Pinpoint PFM MLCC KelvinProbeForceMicroscopy Morphology Zagreb Spain VortexCore AtomicLayer bias_mode HOPG HighAspect Potential Array Pipette ScratchMode single_layer Cross-section Step Nanostructure PiezoelectricForceMicroscopy MolecularSelfAssembly HanyangUniv TipBiasMode solar_cell CuSubstrate Device