GalliumPhosphide Lateral_Force_Microscopy Ni81Fe19 KPFM NCM ChemicalCompound Thermal Crystal LightEmiting KelvinProbeForceMicroscopy FuelCell organic_polymer PinpointPFM University_of_Regensburg Yeditepe_University SiliconCrystal pinpoint mode TPU Piezoresponse Insulator TemperatureControllerStage MagneticPhase ScanningKelvinProbeMicroscopy CalciumHydroxide Worcester_Polytechnic_Institute Cobalt-dopedIronOxide Permalloy NUS Organic #Materials NeodymiumMagnets InsulatorFilm HardDiskMedia MoirePattern Wildtype