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Superconductivity of barium-VI synthesized via compression at low temperatures

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arxiv 1707.05860 v1 pith:OYUGMPWC submitted 2017-07-18 cond-mat.supr-con

Superconductivity of barium-VI synthesized via compression at low temperatures

D. E. Jackson , D. VanGennep , Y. K. Vohra , S. T. Weir , J. J. Hamlin This is my paper
classification cond-mat.supr-con
keywords ba-vimaximumpressuresuperconductingtemperatureaccessedanvilapplication
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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