Nuclear relaxation in the superconducting state of YBa2Cu3O7: Evidence for an s+id state
Q. P. Li, Robert Joynt
DOI 10.1103/PhysRevB.47.530 · Physical Review B
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Abstract
We study the relationship between the symmetry of the pairing state and the NMR measurements in the superconducting state of YBa2Cu3O7. We find that among various pairing states including s-wave, d-wave, and s+id states, only the s+id state is in qualitative agreement with both the Knight shift and 1/T1 measurements. This conclusion is further supported by the agreement between the calculated result using the s+id state and the experimental data on the ratio of the nuclear relaxation rates of Cu(2) and O(2,3) nuclei which cannot be fit by either s-wave or d-wave states.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 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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