High-temperature superconductivity
Bi-, Tl- and Hg-based high-Tc superconductors

High-temperature superconductivity

Section Title: Bi-, Tl- and Hg-based high-Tc superconductors
Table Section Text: None

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

Sentence(s)

In Tl₂Ba₂CaCu₂O₈ (Tl-2212), there are two Cu–O with a Ca layer in between.

final_sentence: In Tl₂Ba₂CaCu₂O₈ (Tl-2212), there are two Cu–O with a Ca layer in between.