Highly crystalline anisotropic superstructures via magnetic field induced nanoparticle assembly.
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.
Park
Jong-Il
JI
Department of Chemistry and Nanomedical National Core Research Center (NCRC), Yonsei University, Seoul, 120-749, Korea.
Jun
Young-wook
YW
Choi
Jin-sil
JS
Cheon
Jinwoo
J
D016880:Anisotropy; D003035:Cobalt / Q000737:chemistry; D003460:Crystallization; D008280:Magnetics; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission
D003035:Cobalt