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Figure 5
(a) The Li3Al(Ge) subarray projected on the ab plane. They form a distorted simple cubic array. As in CaF2, the N atoms (omitted) occupy alternate cubes of this AlLi3 array. The N atoms form, in turn, a distorted f.c.c. structure like In atoms in In2O3. (b) Stereopair representing a distorted face-centered cube of N atoms (blue spheres) with all the tetrahedral holes occupied by Li (pink) and Al(Ge) (grey) atoms. The structure is a distorted fluorite-like array where the ZnS-blende structure is also implicit. Note the special location of Ge(Al) atoms.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 65| Part 1| December 2009| Pages 11-21
doi:10.1107/S010876810803423X
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