Lift Zhi DNAProtein PFM Strontium CarbonNanotube Pinpoint PFM Lateral_Force_Microscopy PinPointMode SKKU AM_SKPM WPlug PVAC piezoelectric force microscopy MESA structure contact DNA thermal_conductivity Dental Ram Organic epitaxy Singapore mono_layer Hafnia hard_disk Barium_titanate Magnets KAIST Electical&Electronics BaTiO3 DIWafer kelvin probe force microscopy Optoelectronic SmallScan