Symmetry and Nodes of the Superconducting Gap
| Title | Symmetry and Nodes of the Superconducting Gap |
| Publication Type | Journal Article |
| Year of Publication | 1993 |
| Authors | Chen LA, Tremblay A-MS |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 54 |
| Pagination | 1381–1384 |
| Abstract | For pairing potentials which act only in the vicinity of the Fermi-surface, a Fermi-surface harmonics expansion of the gap function is appropriate. After a general symmetry discussion, it is pointed-out that the first extended s-wave occuring in the Fermi-surface harmonics expansion of the gap function a) is closely related to the usual d-waves b) it can have a large number of nodes. This may reconcile the experiments which see nodes in the gap and neutron-scattering experiments which cannot resolve the anistropy in the gap function. |
