Silver ScanningIon-ConductanceMicroscopy Crystal GaN CarbonNanotube tip_bias_mode Grain IMT_Bucharest temperature_control layers mfm_amplitude HBN CP-AFM Ananth Vortex Implant self_healing PyroelectricDetector Lattice Inorganic_Compound Force-distance ItoGlass thermoplastic_elastomers Mobile Polyvinylidene Multiferroic_materials Magnetic Force Microscopy Blend VerticalPFM temp_control mono_layer C60H122 Sidewall Oxide HOPG