Self-Assembly and Self-Orientation of Truncated Octahedral Magnetite Nanocrystals

Authors


  • This work was supported by grants from the Research Grants Council and the EHIA award of University Grants Council of the Hong Kong SAR, China.

Abstract

original image

Monodisperse magnetite nanoparticles (12 nm) in the shape of Wigner–Seitz crystals self-assemble into a body-centered cubic superlattice (see figure) in which the nanoparticles possess the same crystallographic orientations. Shape plays a critical role in controlling the orientation of the nanoparticles in self-assembly. Both self-assembly and self-orientation of nanoparticles are important for technical applications such as high-density magnetic storage.

Ancillary