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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=69949 Help
TitleThe important role of pyramidal copper layers of the 123-structure in superconductivity. The oxides Ba2Y1-xCaxCu3-xFexO7 and Ba2Y1-xCaxCu3-xFexO6.
AuthorsSuard, E.;Caignaert, V.;Maignan, A.;Raveau, B.
ReferencePhysica C (1991) 182, 219-227
Link XRef SCOPUS Google
CompoundBa2 Ca0.24 Cu2.76 Fe0.24 O7.07 Y0.76 - Yttrium calcium barium copper iron(III) oxide (0.8/0.2/2/2.8/0.2/7.1) [AB2C3X7] [oP13] [t s r q2 h e b a] []
Cell3.8263(1), 3.8263(1), 11.6643(3), 90., 90., 90.
PMMM (47) V=170.77
RemarksR=0.063000 : N D

Atom (site) Oxid. x, y, z, B, Occupancy
Y1(1h)3
Ca1(1h)2
Ba1(2t)2
Cu1(1a)2.413
Cu2(2q)2.413
Fe1(2q)3
O1(2r)-2
O2(2s)-2
O3(2q)-2
O4(1b)-2
O5(1e)-2
0.50.50.50.700.76
0.50.50.50.700.24
0.50.50.180.751
0000.531
000.350.700.88
000.350.700.12
00.50.370.951
0.500.370.761
000.150.881
0.5002.780.93
00.502.780.14

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