Impurity effects on NMR and the Knight shift in a {ital D}-wave superconductor
Journal Article
·
· Physical Review, B: Condensed Matter
- Physics Department, McMaster University, Hamilton, Ontario, L8S 4M1 (Canada)
We have calculated the effect of impurity scattering on the temperature dependence of the nuclear-spin-lattice-relaxation rate and Knight shift for a two-dimensional superconductor with {ital d}{sub {ital x}}{sup 2}{minus}{ital y}{sup 2} symmetry. Lowest-order Born scattering as well as {ital T}-matrix scattering in the unitary limit is considered. Strong scattering profoundly changes the low-temperature dependences of both quantities giving rise to a constant contribution. Strong-coupling effects, which are never large, are included approximately in our simplified Eliashberg formulation of the problem.
- OSTI ID:
- 142594
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 9 Vol. 49; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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