Pressure-Induced Superconductivity in Sc to 74 GPa

J. J. Hamlin; J. S. Schilling

doi:10.1103/PhysRevB.76.012505

Pressure-Induced Superconductivity in Sc to 74 GPa

Superconductivity 2009-11-13 v2

Authors: J. J. Hamlin , J. S. Schilling

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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 8.2 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.

Keywords

superconductivity scandium high pressure diamond anvil cell phase diagram s-d charge transfer

Cite

@article{arxiv.cond-mat/0703730,
  title  = {Pressure-Induced Superconductivity in Sc to 74 GPa},
  author = {J. J. Hamlin and J. S. Schilling},
  journal= {arXiv preprint arXiv:cond-mat/0703730},
  year   = {2009}
}

Comments

to be published in Phys. Rev. B (Brief Reports)

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