Effect of superconducting fluctuations on spin susceptibility and NMR relaxation rate
- 1 October 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 50 (14) , 10401-10404
- https://doi.org/10.1103/physrevb.50.10401
Abstract
We study the effect of superconducting fluctuations on the spin susceptibility and NMR relaxation rate 1/ just above for arbitrary impurity concentrations. Fluctuations are found to reduce below the Pauli susceptibility. 1/T is enhanced above the Korringa value for weak pair breaking, but suppressed when the pair breaking is large.
Keywords
This publication has 14 references indexed in Scilit:
- Crossover from BCS to Bose superconductivity: Transition temperature and time-dependent Ginzburg-Landau theoryPhysical Review Letters, 1993
- Fluctuation conductivity of layered superconductors in a perpendicular magnetic fieldPhysical Review B, 1993
- Effect of superconducting fluctuations on the transverse resistance of high-superconductorsPhysical Review B, 1993
- Effects of superconducting fluctuations on the NMR relaxation rateT 1 ?1 of two-dimensional systems aboveT cJournal of Low Temperature Physics, 1992
- Pairing and spin gap in the normal state of short coherence length superconductorsPhysical Review Letters, 1992
- Cu spin dynamics and superconducting precursor effects in planes above inPhysical Review Letters, 1989
- Effects of Superconducting Fluctuations on NMR Relaxation RateJournal of the Physics Society Japan, 1989
- Superconducting fluctuation effects on the local electronic spin susceptibilityJournal of Physics C: Solid State Physics, 1976
- Microwave, Flux Flow, and Fluctuation Resistance of Dirty Type-II SuperconductorsPhysical Review B, 1970
- Critical Fluctuation of the Order Parameter in a Superconductor. IProgress of Theoretical Physics, 1968