lift_mode PinPointMode GaAs LiftHeight Conductance Chloroform CntFilm PhaseTransition Chungnam_National_University Vacuum PECurve Butterfly SicMosfet Polymer India ThinFilm PvdfBead TipBiasMode WS2 SFAs contact Sulfur MultiferroicMaterials NUS_Physics alkanes HardDiskMedia RedBloodCell IVSpectroscopy OxideLayer small_scan SelfAssembly BCZT Vortex MechanicalProperty ChemicalCompound