Silicon Ucl NusEce Growing Boundary VortexCore Scanning_Thermal_Microscopy kelvin probe force microscopy molecule Chungnam_National_University BismuthFerrite Morphology InorganicCompound Mechanical optoelectronics Floppy phase_change Phenanthrene Sulfur SicMosfet Glass PolymerPatterns FM_SKPM Insulator OpticalWaveguide Device solar_cell Magnets HighAcpectRatio AM_SKPM CrAu ShenYang Force-distance Litho FM-KPFM