cooling FrequencyModulation Cobalt-dopedIronOxide Korea CopperFoil Growth Polymer Liquid Insulator WWafer LithiumNiobate MultiferroicMaterials ScanningTunnelingMicroscopy Mechinical self_assembly Subhajjit SingleCrystal ScanningThermalMicroscopy Electrode Zhi vertical_PFM Dimethicone NanoLithography Vacuum PinpointNanomechanicalMode PpLdpe alkanes TCS Aluminum ThermalProperties Vortex Ecoli Hafnium_dioxide LiquidCell Biology