👉 Superconductivity is a state of electrical conductivity that occurs in certain materials at very low temperatures. This phenomenon can be observed in many materials, including some metals and some semiconductors. In a superconductor, the electrons have an extremely high energy state, which allows them to conduct electricity without any resistance or loss. This property is due to the fact that the electrons are bound together in a conductor-like structure known as a Fermi surface, where the electrons can move freely and form a