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