Ginzburg criterion

The Ginzburg criterion, often referenced in the context of superconductivity, provides a condition for determining the stability of a superconducting state. Specifically, it assesses the ability of a superconducting material to maintain its superconducting properties under the influence of external magnetic fields or current. The Ginzburg criterion is associated with the Ginzburg-Landau (GL) theory, which is a theoretical framework used to describe superconductivity.