Physics – Condensed Matter – Superconductivity
Scientific paper
2006-06-30
Physics
Condensed Matter
Superconductivity
15 pages, 4 figures
Scientific paper
10.1103/PhysRevB.74.144522
We derive the generalized Ginzburg-Landau free energy functional for conventional and unconventional singlet superconductors in the presence of paramagnetic, orbital and impurity effects. Within the mean field theory, we determine the criterion for appearence of the non uniform (Fulde-Ferrell-Larkin-Ovchinnikov) superconducting state, with vortex lattice structure and additional modulation along the magnetic field. We also discuss the possible change of the order of transition from normal to superconducting state. We find that the superconducting phase diagram is very sensitive to geometrical effects such as the nature of the order parameter and the shape of the Fermi surface. In particular, we obtain the qualitative phase diagrams for three-dimensional isotropic s-wave superconductors and in quasi two-dimensional d-wave superconductors under magnetic field perpendicular to the conducting layers. In addition, we determine the criterion for instability toward non uniform superconducting state in s-wave superconductors in the dirty limit.
Houzet Manuel
Mineev V. P.
No associations
LandOfFree
Interplay of paramagnetic, orbital and impurity effects on the phase transition of a normal metal to superconducting state does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Interplay of paramagnetic, orbital and impurity effects on the phase transition of a normal metal to superconducting state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interplay of paramagnetic, orbital and impurity effects on the phase transition of a normal metal to superconducting state will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-117119