The University of Massachusetts Amherst

In Pictures

A New Kind of Superconductivity

Superconductivity refers to an electric current traveling through a conducting material without resistance.  Superconducting materials discovered over the last century have fallen either into type-1 or type-2 materials. UMass physicist Egor Babaev and his colleagues foresaw a possible third state, type1.5, and have published a theory of this new state of superconductor and numerical calculations of their behavior in magnetic fields. A magnetic field applied to type-1 superconductors produces supercurrents on the surface of the superconductor, while in type-2 superconductors it forms a lattice of quantized vortices. However, a type-1.5 superconductor, as represented above, shows two superconducting components: one forms vortex clusters, the other produces surface current in the boundary of these vortex clusters. Learn more

Photo Credit: Babaev Lab