'''Conventional superconductors''' are materials that display [[superconductivity]] as described by [[BCS theory]] or its extensions.
Critical temperatures of some simple metals:
Element''Tc'' (Kelvin)
Aluminum (Al)1.20
Mercury (Hg)4.15
Molybdenum (Mo)0.92
Niobium (Nb)9.26
Lead (Pb)7.19
Tantalum (Ta)4.48
Titanium (Ti)0.39
Vanadium (V)5.30
Zinc (Zn)0.88
Niobium and vanadium are type-II superconductors, while most other superconducting elements are type-I materials. Almost all compound and alloy superconductors are type-II materials.
The most commonly used conventional superconductor in applications is a niobium-titanium alloy - this is a type-II superconductor with a ''Tc'' of 11 K. The highest critical temperature so far achieved in a conventional superconductor was 39 K (-234 °C in magnesium diboride.
[[Category:Superconducting Qubits]]
