Ginzburg-Landau-type theory of nonpolarized spin superconductivity
Ginzburg-Landau-type theory of nonpolarized spin superconductivity
Since the concept of spin superconductor was proposed, all the related studies concentrate on spin-polarized case. Here, we generalize the study to spin-non-polarized case. The free energy of non-polarized spin superconductor is obtained, and the Ginzburg-Landau-type equations are derived by using the variational method. These Ginzburg-Landau-type equations can be reduced …