Superconductors


Courtesy of: Chris Heilman, Department of Chemistry, Phoenix College.

Electrical resistance, and the heat it produces, is the limiting factor of the speed of todays computer processors. Superconductors have no electrical resistance, but are only known to exist at very low temperatures. The discovery of a room-temperature superconductor would be an astonishing technological breakthrough. It would create an explosion of new technologies: microscopic supercomputers, universal translators, teleporters, faster-than-light travel, force-fields, fusion reactors, cosmic radiation shielding, free energy and anti-gravity. It would make terraforming a reality within a single generation.

CompoundTransition temperature (K)
High-temperature
Hg0.8Tl0.2Ba2Ca2Cu3O8.33138
HgBa2Ca2Cu3O8133-135
Tl2Ba2Ca2Cu3O10125-127
HgBa2Ca3Cu4O10+125-126
HgBa2Ca1-xSrxCu2O6+123-125
HgBa2CaCu2O6123
(Tl0.5Pb0.5)Sr2Ca2Cu3O9120
TlBa2Ca3Cu4O11112
Tl2Ba2Ca3Cu4O12112
TlBa2Ca2Cu3O9+110
Ca1-xSrxCuO2110
Bi2Sr2Ca2Cu3O10110
TlBa2Ca4Cu5O13107
Tl2Ba2Ca4Cu5O14105
TlBa2CaCu2O7103
TmBa2Cu3O7101
Tl2Ba2CaCu2O899
HgBa2CuO4+94-98
Tl2Ba2CuO670
(Tl,Pb)(CO3)Sr4Cu2O770
Low-temperature
Niobium9.25
Technetium7.8
Lead7.2
Vanadium5.40
Lanthanum4.9
Tantalum4.47
Mercury4.15
Tin3.72
Indium3.40
Thallium1.70
Rhenium1.697
Protactinium1.4
Thorium1.38
Aluminium1.175
Gallium1.10
Gadolinium1.083
Molybdenum0.915
Zinc0.85
Osmium0.66
Zirconium0.61
Americium0.6
Cadmium0.517
Ruthenium0.49
Titanium0.40
Uranium0.20
Hafnium0.128
Iridium0.1125
Lutetium0.1
Beryllium0.026
Tungsten0.0154
Platinum0.0019
Rhodium0.000325
AuIn30.00005