EFM 2d_materials ConductingPolymer Led Yttria_stabilized_Zirconia AmplitudeModulation HighAspect Annealing Yeditepe Mechanical BiasMode Mapping Wonseok Al2O3 dielectric_trench GaAs PMNPT cannabidiol Modulus Liquid LiftMode ElectrostaticForceMicroscopy Optical FM_KPFM Gallium self-assembled_monolayer Multiferroic_materials ShenYang Force-distance Ito LithiumNiobate C60H122 NUS_Physics SurfaceOxidation amplitude_modulation