High-temperature superconductivity
Bi-, Tl- and Hg-based high-Tc superconductors
Table:
Critical temperature (Tc), crystal structure and lattice constants of some high-Tc superconductors

Formula

Notation

Tc (K)

No. of Cu-O planes
in unit cell

Crystal structure

YBa2Cu3O7
123
92
2
Orthorhombic

Bi2Sr2CuO6
Bi-2201
20
1
Tetragonal

Bi2Sr2CaCu2O8
Bi-2212
85
2
Tetragonal

Bi2Sr2Ca2Cu3O10
Bi-2223
110
3
Tetragonal

Tl2Ba2CuO6
Tl-2201
80
1
Tetragonal

Tl2Ba2CaCu2O8
Tl-2212
108
2
Tetragonal

Tl2Ba2Ca2Cu3O10
Tl-2223
125
3
Tetragonal

TlBa2Ca3Cu4O11
Tl-1234
122
4
Tetragonal

HgBa2CuO4
Hg-1201
94
1
Tetragonal

HgBa2CaCu2O6
Hg-1212
128
2
Tetragonal

HgBa2Ca2Cu3O8
Hg-1223
134
3
Tetragonal

Drawing on the table called High-temperature superconductivity in the "Bi-, Tl- and Hg-based high-Tc superconductors" section, respond to this question in a short sentence: What are the transition temperatures of the superconductors Bi-2201, Bi-2212 and Bi-2223? Output only the correct answer as {"answer": "YOUR ANSWER"}.

answer: The Bi-2201, Bi-2212 and Bi-2223 superconductors have transition temperatures of 20, 85 and 110 K.