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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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CC=98537 Help
TitleComplex aluminates RE2 Sr Al2 O7 (RE = La, Nd, Sm-Ho): cation ordering and stability of the double perovskite slab-rocksalt layer P2/RS intergrowth.
AuthorsZvereva, I.; Smirnov, Yu.; Gusarov, V.; Popova, V.; Choisnet, J.
ReferenceIC&volume=5&fpage=343&details=yes target=icsd_help>Solid State Sciences (2003) 5, 343-349
Link XRef SCOPUS Google
CompoundAl2 Nd2 O7 Sr1 - Dineodymium strontium dialuminate [A2B3X7] [tI24] [g e3 b a] [Sr3Ti2O7]
Cell3.724(1), 3.724(1), 19.938(2), 90, 90, 90
I4/MMM (139) V=276.5
RemarksR=0.048000 : T =Sr3Ti2O7 : X
At least one temperature factor is implausible or meaningless but agrees with the value given in the paper.

Atom (site) Oxid. x, y, z, B, Occupancy
Nd1(2b)3
Sr1(2b)2
Nd2(4e)3
Sr2(4e)2
Al1(4e)3
O1(2a)-2
O2(8g)-2
O3(4e)-2
0.0.0.50.210.54
0.0.0.50.210.46
0.0.0.310.230.73
0.0.0.310.230.27
0.0.0.090.101
0.0.0.0.2(1
0.0.50.090.2(1
0.0.0.190.3(1

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