Figure 3
From: Origin of reduced magnetization and domain formation in small magnetite nanoparticles
(a) [001] view of a (001) FeB–O lattice plane in bulk magnetite. (b) The presence of a ¼a0 <110> APB (dashed line) leads to shifted right hand side for ¼a0 <110> (in-plane, arrows represent the shift vector), changing the FeB-O-FeB angle from 90° as shown in (a) to 180°. The oxygen sub-lattice is invariant under the shift. (c) 10 nm nanoparticle model with single ¼a0 <110> APB shown along the [11-2] zone axis. Tetrahedral FeA atoms are coloured in red, octahedral FeB in blue and oxygen atoms (not shown in (c)) in green. Drawing of the structural models was generated in VESTA39 software.
