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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=95644 Help
TitleNeutron powder diffraction studies on Ba3 Ca1+x Nb2-x O9-3x/2 complex perovskite-type oxides.
AuthorsOikawa, K.;Kamiyama, T.;Ikeda, S.;Shishido, T.;Yamaguchi, S.
ReferenceSolid State Ionics (2002) 154, 641-646
Link XRef SCOPUS SCIRUS Google
CompoundBa2 Ca0.833 Nb1.167 O5.75 - Barium niobium calcium oxide (2/1.17/0.83/5.75) [ABC2X6] [hR10] [h c b a] []
Cell5.9520(3), 5.9520(3), 5.9520(3), 60.005(3), 60.005(3), 60.005(3)
R3-MR (166) V=149.12
RemarksR=0.039200 : NDP RVP DEF

Atom (site) Oxid. x, y, z, B, Occupancy
Ba1(2c)2
Nb1(1b)5
Ca1(1a)2
Nb2(1a)5
O1(6h)-2
0.2516(6)0.2516(6)0.2516(6)1.03(2)1
0.50.50.50.20(3)1
0.0.0.0.83(5)0.8333
0.0.0.0.83(5)0.1667
0.2609(3)0.2609(3)0.7273(4)2.06(2)0.9583

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