Conventional superconductor

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

Last modified: 
Monday, October 26, 2015 - 17:56