Relaxation of Polarized Nuclei in Superconducting Rhodium
T. A. Knuuttila, J. T. Tuoriniemi, K. Lefmann
DOI 10.1103/PhysRevLett.85.2573 · Physical Review Letters
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Abstract
Nuclear spin lattice relaxation rates were measured in normal and superconducting (sc) rhodium with nuclear polarizations up to p=0.55. This was sufficient to influence the sc state of Rh, whose Tc and Bc are exceptionally low. Because Bc≪Bloc and the short-range spin-spin interaction is unchanged, the nuclear spin entropy was fully sustained across the sc transition. The relaxation in the sc state was slower at all temperatures without the coherence enhancement close to Tc. Nonzero nuclear polarization strongly reduced the difference between the relaxation rates in the sc and normal states.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Rh Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.325 | Pressure not reported | unknown |
| Rh Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.21 | Pressure not reported | unknown |
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