COBALT NANOSIZED PARTICLES ORGANIZED IN A 2D SUPERLATTICE : SYNTHESIS, CHARACTERIZATION, AND MAGNETIC PROPERTIES

摘要: Colloidal assemblies are used to synthesize FCC cobalt nanoparticles. The particles coated, extracted from micelles, and characterized by transmission electron microscopy, small angle X-ray scattering, diffraction spectroscopy. These metal stable in air, have a narrow size distribution, on deposition graphite support, spontaneously form 2D hexagonal network. magnetic properties compared when they dispersed solvent organized superlattices. Changes the hysteresis loop blocking temperature observed attributed collective flip of magnetization adjacent particles.