Superconductivity of barium-VI synthesized via compression at low temperatures

D. E. Jackson; D. VanGennep; Y. K. Vohra; S. T. Weir; J. J. Hamlin

doi:10.1103/PhysRevB.96.184514

Superconductivity of barium-VI synthesized via compression at low temperatures

Superconductivity 2018-06-07 v1

Authors: D. E. Jackson , D. VanGennep , Y. K. Vohra , S. T. Weir , J. J. Hamlin

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Abstract

Using a membrane-driven diamond anvil cell and both ac magnetic susceptibility and electrical resistivity measurements, we have characterized the superconducting phase diagram of elemental barium to pressures as high as 65 GPa. We have determined the superconducting properties of the recently discovered Ba-VI crystal structure, which can only be accessed via the application of pressure at low temperature. We find that Ba-VI exhibits a maximum Tc near 8 K, which is substantially higher than the maximum Tc found when pressure is applied at room temperature.

Keywords

superconductivity barium Ba-VI phase high pressure low-temperature compression critical temperature

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@article{arxiv.1707.05860,
  title  = {Superconductivity of barium-VI synthesized via compression at low temperatures},
  author = {D. E. Jackson and D. VanGennep and Y. K. Vohra and S. T. Weir and J. J. Hamlin},
  journal= {arXiv preprint arXiv:1707.05860},
  year   = {2018}
}

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6 pages, 1 table, 3 figures

Superconductivity of barium-VI synthesized via compression at low temperatures

Abstract

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