Effect of superconducting fluctuations on spin susceptibility and NMR relaxation rate
Mohit Randeria, Andrei A. Varlamov
DOI 10.1103/PhysRevB.50.10401 · Physical Review B
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Abstract
We study the effect of superconducting fluctuations on the spin susceptibility χs and NMR relaxation rate 1/T1 just above Tc for arbitrary impurity concentrations. Fluctuations are found to reduce χs below the Pauli susceptibility. 1/T1T is enhanced above the Korringa value for weak pair breaking, but suppressed when the pair breaking is large.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La3Ni2O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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