FrequencyModulation Device PtfeMembrane Piranha Yeditepe Organic Praseodymium Layer Tin disulfide Wang Reduction SelfAssembly HDD Metal-organicComplex BlockCopolymer FM-KPFM Permalloy IVSpectroscopy temp self-assembled_monolayer MBE pinpoint mode LeakageCurrent molecules ScanningIon-ConductanceMicroscopy KevlarFiber cross section SPMLabs Vacuum Pzt Galfenol Corrosion Trench Conductivity FuelCell