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• Crystal structure and Mössbauer studies of $Li_1.746Nd_4.494Fe)_9.493$
Drofenik, Mihael ...
The $Li_1.746Nd_4.494FeO_9.493$ (LNF) ternary phase, located in the $Li_2O$-rich part of the $Li_2O-Nd_2O_3-Fe_2O_3$ system, crystallizes with a cubic unit cell of dimension and the space group ... Im3m. Refinement on F resulted in R=1.9%. The structure is comprised of a network of corners, edges and faces sharing the coordination polyhedra of neodymium. In between this skeleton the regular octahedra of oxygen-coordinated iron and trigonal prisms of lithium are located. The Mössbauer spectra revealed the presence of $Fe^3+$, $Fe^4+$ and $Fe^5+$ ions distributed on two symmetry-independent lattice positions.
Vir: Journal of solid state chemistry. - ISSN 0022-4596 (Vol. 180, 2007, str. 1-6)