BiFeO3 neodymium_magnets piezoelectric force microscopy ThermalConductivity kelvin probe force microscopy fluoroaalkane Strontium Nanostructure BismuthVanadate hard_disk Wildtype Deposition Boron OpticalWaveguides Morphology TPU HiVacuum Hexatriacontane LiquidCrystal LiNbO3 YttriaStabilizedZirconia Non-ContactMode mono_layer PolyvinylideneFluoride Switching Gong alkanes MembraneFilter Annealed DomainSwitching Anneal Change Fluoride CastIron Polarization