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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=87384
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Title
Structural anomalies of 1223 Hg(Tl)-Ba-Ca-Cu-O superconductors in the temperature range 100 - 300 K.
Authors
Titova, S.;Bryntse, I.;Irvine, J.;Mitchell, B.;Balakirev, V.
Reference
IC&volume=11&fpage=471&details=yes target=icsd_help>Journal of Superconductivity (1998)
11
, 471-479
Link
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Compound
Ba2 Ca2 Cu3 Hg0.8 O8.09 Tl0.2
- Mercury thallium barium calcium copper oxide (0.8/0.2/2/2/3/8.09)
[
AB2C2D3X8
] [
tP16
] [
i h2 g2 e c b a
] [
]
Cell
3.852(1), 3.852(1), 15.828(5), 90., 90., 90.
P4/MMM (123)
V=234.85
Remarks
R=0.070000 : T =170 : X D
At least one temperature factor missing in the paper.
Temperature interloated from fig. 5-7
Atom (site) Oxid.
x, y, z, B, Occupancy
Ca1
(2h)
2
Hg1
(1a)
2
Tl1
(1a)
3
Ba1
(2h)
2
Cu1
(1b)
1.993
Cu2
(2g)
1.993
O1
(2e)
-2
O2
(4i)
-2
O3
(2g)
-2
O4
(1c)
-2
0.5
0.5
0.39
0
1
0
0
0
0
0.8
0
0
0
0
0.2
0.5
0.5
0.17
0
1
0
0
0.5
0
1
0
0
0.29
0
1
0
0.5
0.5
0
1
0
0.5
0.29
0
1
0
0
0.16
0
1
0.5
0.5
0
0
0.09
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