Evolution of T2 resistivity and superconductivity in Nb3Sn under pressure
Z. Ren, L. Gamperle, A. Fete, C. Senatore, D. Jaccard
DOI 10.1103/PhysRevB.95.184503 · Physical Review B
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Abstract
We present a resistivity study of single- and polycrystalline Nb3Sn under pressure up to 9.3 GPa. Despite quite different pressure responses, Tc of both samples is diminished with increasing pressure. Above Tc, their resistivity follows a T2 dependence whose coefficient A decreases with pressure. We show that the bulk Tc depends linearly on A, and the slope of this linear contribution becomes larger with the increase of disorder. Our results suggest that the density of states at the Fermi level plays an important role in governing the pressure dependence of Tc in Nb3Sn.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb3Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 18 | Pressure unresolved | unknown |
| Nb3Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 18 | Pressure unresolved | unknown |
| Nb3Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 17.7 | Pressure not reported | unknown |
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