NtuEee HfO2 Conductance Workfunction YttriaStabilizedZirconia SurfaceOxidation LeakageCurrent Graphite Typhimurium Sic Growth BismuthVanadate PatternedSapphireSubstrat Switching thermal_conductivity Titanate Friction Calcite LateralPFM Tungsten Polydimethylsiloxane Galfenol WS2 ForceVolumeMapping PFM Global_Comm PhaseImaging Nanofiber multi_layer Conductivity Monisha STM CaMnO3 Boundary Self-assembledMonolayer