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Super-conductors
(La,Ba)2CuO4
TlBa2Ca3Cu4O11
(Nd,Ce)2CuO4-d
(Eu,Ce)2(Ba,Eu)2Cu3O10-d
YBa2Cu3O7-d
Tl2Ba2Ca3Cu4O12
(Pb,Cu)(Eu,Ce)2(Sr,Eu)2Cu2O9
(Pb,Ba)(Y,Sr)Cu3O8
(Tl,Pb)Sr4Cu2CO3O7
Tl2Ba2CuO6
TlBa2CaCu2O7-d
TlBa2Ca2Cu3O9+d
(Ba,Sr)CuO2
TlBa2Ca4Cu5O13




(La,Ba)2CuO4
High-Tc superconductor
Tc = 38 (K)


Structure type: 0201
Crystal system: Tetragonal
Lattice constants:
a = 3.7873 Å
c = 13.2883 Å
Space group: I4/mmm
Atomic positions:
La,Ba at (0, 0, 0.3606)
Cu at (0, 0, 0)
O1 at (0, 1/2, 0)
O2 at (0, 0, 0.1828)


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TlBa2Ca3Cu4O11
High-Tc superconductor
Tc = 112 (K)


Structure type: 1234
Crystal system: Tetragonal
Lattice constants:
a = 3.85 Å
c = 19.15 Å
Space group: P4/mmm
Atomic positions:
Ca1   at (1/2,1/2, 1/2)
Ca2  at (1/2, 1/2, 0.3315)
Ba   at (1/2, 1/2, 0.15)
Tl   at (0, 0, 0)
Cu1  at (0, 0, 0.248)
Cu2  at (0, 0, 0.4151)
O1   at(1/2, 1/2, 0)
O2   at (1/2, 0, 0.248)
O3   at (1/2, 0, 0.4151)
O4   at (0, 0, 0.15)


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(Nd,Ce)2CuO4-d
High-Tc superconductor
Tc =24 (K)



Structure type: 0201T '
Crystal system: Tetragonal
Lattice constants:
a = 3.95 Å
c = 12.07 Å
Space group: I4/mmm
Atomic positions:
Nd,Ce   at (0,0,0.3513)
Cu   at(0,0,0)
O1   at (0, 1/2, 0)
O2  at (0, 1/2,1/4)


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(Eu,Ce)2(Ba,Eu)2Cu3O10-d
High-Tc superconductor
Tc = 43 (K)


Structure type: 1201T*F
Crystal system: Tetragonal
Lattice constants:
a = 3.8504 Å
c = 28.4598 Å
Space group: I4/mmm
Atomic positions:
Eu,Ce   at (0,0,0.2942)
Ba,Eu  at (0,0, 0.4245)
Cu1   at (0,0,0)
Cu2  at (0, 0, 0.1423)
O1   at(0, 1/2, 0)
O2   at (0, 0, 0.0663)
O3   at (0,1/2,0.354)
O4   at (0, 1/2,1/4)


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YBa2Cu3O7-d
High-Tc superconductor
Tc = 92 (K)


Structure type: 1212C
Crystal system: Orthorhombic
Lattice constants:
a = 3.8227 Å
b = 3.8872 Å
c = 11.6802 Å
Space group: Pmmm
Atomic positions:
Y   at (1/2,1/2,1/2)
Ba   at (1/2,1/2,0.1843)
Cu1   at (0,0,0)
Cu2  at (0, 0, 0.3556)
O1   at(0, 1/2, 0)
O2   at (1/2,0,0.3779)
O3   at (0,1/2,0.379)
O4   at (0, 0,0.159)


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Tl2Ba2Ca3Cu4O12
High-Tc superconductor
Tc = 112(K)


Structure type: 2234
Crystal system: Tetragonal
Lattice constants:
a = 3.85 Å
c = 41.98 Å
Space group: I4/mmm
Atomic positions:
Ca1  at (1/2,1/2,0)
Ca2  at (1/2,1/2,0.0744)
Ba   at (1/2,1/2,0.1653)
Tl  at (0, 0, 0.219)
Cu1   at (0,0,0.0372)
Cu2  at (0, 0, 0.1116)
O1   at(1/2, 0,0.0372)
O2   at (1/2,0,0.1116)
O3   at (0,0,0.1653)
O4   at (1/2,1/2,0.219)


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(Pb,Cu)(Eu,Ce)2(Sr,Eu)2Cu2O9
High-Tc superconductor
Tc = 25(K)


Structure type: 1201T*
Crystal system: Tetragonal
Lattice constants:
a = 3.8 Å
c = 29.6 Å
Space group: I4/mmm
Atomic positions:
Eu,Ce  at (0,0,0.2942)
Sr,Eu  at (0,0,0.4245)
Pb,Cu1  at (0,0,0)
Cu2  at (0, 0, 0.1423)
O1   at(0,0,1/2)
O2   at (0,0,0.066)
O3   at (0,1/2,0.354)
O4   at (0,1/2,1/4)


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(Pb,Ba)(Y,Sr)Cu3O8
High-Tc superconductor
Tc = 50(K)


Structure type: 0223
Crystal system: Tetragonal
Lattice constants:
a = 3.842 Å
c = 27.66 Å
Space group: I4/mmm
Atomic positions:
Ba,Pb  at (0,0,0.29)
Y,Sr  at (0,0,0.437)
Cu1  at (0,0,0)
Cu2  at (0, 0, 0.122)
O1   at(0,1/2,0)
O2   at (0,0,0.2)
O3   at (0,1/2,0.118)


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(Tl,Pb)Sr4Cu2CO3O7
High-Tc superconductor
Tc = 70(K)


Structure type: 1201/1201
Crystal system: Tetragonal
Lattice constants:
a = 3.82 Å
c = 16.52 Å
Space group: P4/mmm
Atomic positions:
Sr1  at (1/2,1/2,0.1596)
Sr2  at (1/2,1/2,0.3725)
Tl,Pb  at (0,0,0)
Cu  at (0, 0, 0.2654)
C  at (0, 0, 1/2)
O1   at(0.67,1/2,0)
O2   at (0,0,0.121)
O3   at (0.162,0,0.414)
O4   at (0.316,0,1/2)
O5  at (1/2,0,0.277)


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Tl2Ba2CuO6
High-Tc superconductor
Tc = 95(K)


Structure type: 2201
Crystal system: Tetragonal
Lattice constants:
a = 3.8637 Å
c = 23.1392 Å
Space group: I4/mmm
Atomic positions:
Tl  at (0,0,0.2971)
Ba  at (0,0,0.0847)
Cu  at (0, 0, 1/2)
O1   at(0,1/2,0)
O2   at (0,0,0.3827)
O3   at (0,0.1043,0.2104)


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TlBa2CaCu2O7-d
High-Tc superconductor
Tc = 103(K)


Structure type: 11212
Crystal system: Tetragonal
Lattice constants:
a = 3.8566 Å
c = 12.754 Å
Space group: P4/mmm
Atomic positions:
Ba  at (1/2,1/2,0.2842)
Tl  at (0,0,1/2)
Ca  at (1/2,1/2,0)
Cu  at (0,0,0.1255)
O1   at(1/2,0,0.121)
O2   at (0,0,0.3421)
O3   at (1/2,1/2,1/2)


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TlBa2Ca2Cu3O9+d
High-Tc superconductor
Tc = 123(K)


Structure type: 1223
Crystal system: Tetragonal
Lattice constants:
a = 3.8429 Å
c = 15.871 Å
Space group: P4/mmm
Atomic positions:
Ca  at (1/2,1/2,0.397)
Tl  at (0,0,0)
Ba  at (1/2,1/2,0.176)
Cu1  at (0, 0, 1/2)
Cu2  at (0, 0, 0.302)
O1   at(0,1/2,1/2)
O2   at (0,1/2,0.304)
O3   at (0,0,0.132)
O4   at (1/2,1/2,0)


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(Ba,Sr)CuO2
High-Tc superconductor
Tc = 90(K)


Structure type: 02"∞ -1"∞
Crystal system: Tetragonal
Lattice constants:
a = 3.93 Å
c = 3.47 Å
Space group: P4/mmm
Atomic positions:
Cu  at (0,0,0)
O  at (0,1/2,0)
Ba,Sr  at (1/2,1/2,1/2)


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TlBa2Ca4Cu5O13
High-Tc superconductor
Tc = 107(K)


Structure type: 1245
Crystal system: Tetragonal
Lattice constants:
a = 3.85 Å
c = 22.25 Å
Space group: P4/mmm
Atomic positions:
Ca1  at (1/2,1/2,0.431)
Ca2  at (1/2,1/2,0.293)
Ba  at (1/2,1/2,0.15)
Tl  at (0, 0, 0)
Cu1  at (0, 0, 0.223)
Cu2  at (0, 0, 0.362)
Cu3  at (0, 0, 1/2)
O1   at(1/2,0,0.223)
O2   at (1/2,0,0.362)
O3   at (1/2,0,1/2)
O4   at (0,0,0.15)
O5  at (1/2,1/2,0)


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