Boundary HBN TransitionMetal Pinpoint PFM Conductive AFM Melt Microchannel China gallium_nitride Copper BismuthVanadate Au111 Holes ForceMapping plastics Moire PolyimideFilm Ferroelectric Composition Tin disulfide FailureAnalysis FAFailureAnlaysis Global_Comm Oxide atomic_layer CastIron fifber nanobar LiftHeight LowDensityPolyethylene SoftSample Piezoelectric MagneticForce PolycrystallineFerroelectricBCZT LiquidCrystal