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Self-assembly and self-orientation of truncated nano-octahedra of magnetite

R. K. Zheng·Hongwei Gu·Bing Xu·K. K. Fung·X. X. Zhang
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Abstract

Monodispersed magnetite (Fe3O4) nanoparticles were synthesized. Transmission electron microscopy study shows that the nanoparticles are in the shape of Wagner-Seitz crystals. The magnetite nanoparticles self-assemble into body-centered cubic superlattice, in which the nanoparticles have the same crystallographic orientations. Shape plays a very critical role in controlling the orientation of the nanoparticles in the superlattice. Both the self-assembly and self-orientation of nanoparticles are important for technical applications. This can also act as a complement to conventional lithography techniques.

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R. K. Zheng, Hongwei Gu, Bing Xu, K. K. Fung, X. X. Zhang. 2005-12-19. Self-assembly and self-orientation of truncated nano-octahedra of magnetite. https://doi.org/10.1002/adma.200600788

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