Question

What are the two superconductors?

Answer 1

A semiconductor material has an electrical conductivity value falling between that of a conductor, such as metallic copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way.

The two types of superconductors are:

1. Type I superconductor:
2. Type I superconductors are those superconductors that lose their superconductivity very easily or abruptly when placed in the external magnetic field.
3. As you can see from the graph of the intensity of magnetization (M) versus applied magnetic field (H), when the Type I superconductor is placed in the magnetic field, it suddenly or easily loses its superconductivity at the critical magnetic field (H_c) (point A).
4. aluminum, lead, and mercury are few example of type 1.

1. Type II superconductor:
2. Type II superconductors are those superconductors that lose their superconductivity gradually but not easily or abruptly when placed in the external magnetic field.
3. As you can see from the graph of the intensity of magnetization (M) versus applied magnetic field (H), when the Type II superconductor is placed in the magnetic field, it gradually loses its superconductivity.
4. Type II superconductors start to lose their superconductivity at the lower critical magnetic field (H_c1) and completely lose their superconductivity at the upper critical magnetic field (H_c2).

Type II Superconductors