Self‐Assembled Magnetite Mesocrystalline Films: Toward Structural Evolution from 2D to 3D Superlattices

• DOI: 10.1002/admi.201600431
• Publication Date: 2016-08-11T06:22:50Z
• Authors: J. Brunner; I. A. Baburin; S. Sturm; K. Kvashnina; A. Rossberg; T. Pietsch; S. Andreev; E. Sturm (née Ros...; H. Cölfen
• Keywords: Superstructure

This study describes synthesis and detailed characterization of 2D 3D mesocrystalline films produced by self‐assembly iron oxide (magnetite) truncated nanocubes. The orientational relations between nanocrystals within the superlattice are examined atomistic models introduced. In case, two distinct superstructures (i.e., translational order) magnetite nanocubes can be observed with p 4 mm c 2 layer symmetries while maintaining same order (with [100] perpendicular to substrate). structure approximated a slightly distorted face‐centered cubic (fcc) superlattice. most efficient space filling superstructure is achieved changing nanoparticles following “bump‐to‐hollow” packing principle. Namely determined shape relations: [001] SL ||[310] , ||[301] ||[100] . Overall presented data provide fundamental understanding mesocrystal formation mechanism their structural evolution. Structure, composition, magnetic properties synthesised also characterized.