Advances in Physics, Mathematics and Applied Science

Superconductivity

Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials are  called superconductors, when cooled below a characteristic critical temperature. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterize by the (Meissner  effect), the complete ejection of magnetic field lines from the interior of the superconductor as it transitions into the superconducting state. In a superconductor; the resistance drops abruptly to zero when the material is cooled below its critical temperature.