Holes mfm_amplitude Optical HOPG Hydroxyapatite MagneticForce Patterns NeodymiumMagnets amplitude_modulation Multiferroic_materials Self-assembledMonolayer KAIST PiezoelectricForceMicroscopy FailureAnalysis MolybdenumDisulfide high_resolution PatternedSapphireSubstrat PVAC Film P3HT nanomechanical Laser CuFoil Pzt Hole SelfAssembly light_emitting BiVO4 Deposition Wildtype Yeditepe_University Friction Mechinical MagneticForceMicroscopy BiasMode