Pressure-Induced Superconductivity in Sc to 74 GPa

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 8.2 K at 74.2 GPa. 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.

arXiv commentto be published in Phys. Rev. B (Brief Reports)

References in corpus (4)

• Superconducting phase diagram of Li Metal in nearly hydrostatic pressures up to 67 GPa
• On the constitution of sodium at higher densities
• Superconductivity at 17 K in Yttrium Metal under Nearly Hydrostatic Pressures to 89 GPa
• Dependence of the Superconducting Transition Temperature of MgB2 on Pressure to 20 GPa

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