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- Title
Spectral Representations and Description of a Superconducting State with S-Type Order Parameter Δ(k).
- Authors
Val’kov, V. V.; Dzebisashvili, D. M.; Kravtsov, A. S.
- Abstract
The inclusion of a singular contribution to the spectral intensity of the anomalous correlation function is shown to regain the sum rule and remove the unjustified forbidding of the S-symmetry order parameter in superconductors with strong correlations. For the order parameter of this symmetry, the solution to the self-consistency equation is analyzed beyond the nearest-neighbor approximation.(c) 2003 MAIK "Nauka/Interperiodica".
- Subjects
SUPERCONDUCTIVITY; SPECTRUM analysis; SUPERCONDUCTORS; APPROXIMATION theory
- Publication
JETP Letters, 2003, Vol 77, Issue 9, p505
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.1591980