Cross-section TCS multi_layer epitaxy MagneticForceMicroscopy Pzt Cobalt biocompatible fluorocarbon Oxide GaN MoirePattern Sapphire Electrode PVAP3HT NiFe SKKU Permalloy PvdfFilm MagneticArray KPFM 3-hexylthiophene Glass SICM Hexylthiophene Conductance Electical&Electronics Epoxy PvdfBead GaP Memory Spincast CVD Defect PhaseTransition