Composite Mfm LFM non_contact HafniumDioxide Sphere Pinpoint PFM UnivOfMaryland LiquidImaging multi_layer ConductiveAFM Aggregated_molecules Reading LiquidCell Copolymer Hexylthiophene LateralForceMicroscopy SurfaceChange SPMLabs Pzt Microchannel WS2 FM-KPFM SrO MBE Sapphire fluorocarbon KevlarFiber Crystal Floppy Conductive AFM ElectrostaticForceMicroscopy optoelectronics MagneticForceMicroscopy Varistor