superconducting transition

A superconducting transition occurs when certain materials, cooled below a critical temperature, suddenly exhibit zero electrical resistance. At this point, the material allows electric current to flow freely without energy loss, unlike normal conductors that generate heat due to resistance. This transition also often involves the expulsion of magnetic fields from within the material, a phenomenon called the Meissner effect. The transition is a quantum mechanical change in the material’s electronic properties, leading to perfect conductivity and unique magnetic behaviors essential for advanced technologies like MRI machines, maglev trains, and quantum computing.