NMR relaxation time in a clean two-band superconductor
arXiv:cond-mat/0504154 · doi:10.1103/PhysRevB.72.134511
Abstract
We study the spin-lattice relaxation rate of nuclear magnetic resonance in a two-band superconductor. Both conventional and unconventional pairing symmetries for an arbitrary band structure in the clean limit are considered. The importance of the inter-band interference effects is emphasized. The calculations in the conventional case with two isotropic gaps are performed using a two-band generalization of Eliashberg theory.
9 pages, 3 figures