Ginzburg-Landau functional for superconductors with anisotropic pairing
Zhitomirskii M. E.
Limitations are found on the values of the phenomenological constants in the gradient terms in the Ginzburg-Landau functional. A layered superconducting phase arises in a certain region of parameter values in a zero magnetic field. The usual Landau picture of second-order phase transitions is disrupted in the case of a superconducting transition of this sort.