Pressure-induced superconductivity in Sc to 74GPa
J. J. Hamlin, J. S. Schilling
DOI 10.1103/PhysRevB.76.012505 · Physical Review B
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Abstract
Using a diamond-anvil cell with nearly hydrostatic helium pressure medium, we have significantly extended the superconducting phase diagram Tc(P) of Sc, the lightest of all transition metals. We find that superconductivity is induced in Sc under pressure, Tc increasing monotonically to 8.2K at 74.2GPa. The Tc(P) dependences of the trivalent d-electron metals Sc, Y, La, and Lu are compared and discussed within a simple s→d charge transfer framework.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sc Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8.2 | 74.2 GPa | onset |
| Sc Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.35 | 21.5 GPa | unknown |
| Lu Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.5 | 22 GPa | unknown |
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