LithiumNiobate Fujian gallium_nitride Non-ContactMode Chromium Phosphide polymeric_arrays Pinpoint IcelandSpar Insulator kelvin probe force microscopy Aluminium_Oxide Sio2 Moire fluorocarbon semifluorinated alkane Defect Cross-section HfO2 AtomicSteps FM_KPFM Tin sulfide Galfenol Electrode PolymerBlend MagneticPhase Optic IRDetector fluoroaalkane CrAu Vanadate Polyurethane Defects WPlug PetruPoni_Institute