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Jong-Il Park, Young-wook Jun, Jin-sil Choi, and Jinwoo Cheon*
Highly Crystalline Anisotropic Superstructures via Magnetic Field Induced Nanoparticle Assembly
Chem. Commun., 47, 5001-5003
Date: Nov 8, 2007

A magnetic field is successfully utilized to induce the fabrication of size controllable one-dimensional (1-D) supercrystals which are composed of a highly crystalline assembly of fcc-packed cobalt nanoparticles; the anisotropy associated supercrystal magnetism is enhanced with four times higher coercivity than that of randomly aggregated nanoparticles.

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