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Self‐Assembly and Self‐Orientation of Truncated Octahedral Magnetite Nanocrystals
Author(s) -
Zheng R. K.,
Gu H.,
Xu B.,
Fung K. K.,
Zhang X. X.,
Ringer S. P.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200600788
Subject(s) - magnetite , octahedron , nanocrystal , materials science , orientation (vector space) , crystallography , self assembly , nanotechnology , chemical engineering , metallurgy , crystal structure , chemistry , geometry , engineering , mathematics
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.