Pvdf SurfaceChange self_assembly margarine ContactMode Celebration Styrene Ceramics DIWafer PiezoelectricForceMicroscopy bias_mode Anneal Transparent Monisha nanobar NTU Heat LaAlO3 Cobalt FloppyDisk IVSpectroscopy food Defect Thermal kelvin probe force microscopy amplitude_modulation Hair Steps YszSubstrate Memory exfoliate PolymerPatterns 2d_materials Vanadate Conductance