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Effects of Pressure on Superconductivity in Chemically Substituted MoB2

ORAL

Abstract

Recently, superconductivity was discovered in MoB2 with a Tc of 3K at a pressure of 25 GPa which goes to 32 K upon increasing pressure to 100 GPa. Here, we report the results of studies to examine the superconducting behavior of chemically substituted variants of MoB2, both at ambient and high pressure.  In particular, we have identified a variant in which superconductivity in the MgB2-like structure occurs at ambient pressure with a Tc of ~8 K.  We will present the results of measurements of the superconducting critical temperature, critical field, and crystal structure under high pressure. 

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Presenters

  • Shubham Sinha

    University of Florida

Authors

  • Shubham Sinha

    University of Florida

  • Jinhyuk Lim

    Department of Physics, University of Florida, University of Florida

  • JungSoo Kim

    Department of Physics, University of Florida, University of Florida

  • Ajinkya C Hire

    Department of Materials Science and Engineering, University of Florida, University of Florida

  • Gregory R Stewart

    Department of Physics, University of Florida, University of Florida

  • Richard G. G Hennig

    University of Florida, Department of Materials Science and Engineering, University of Florida, Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, United States

  • Peter J Hirschfeld

    University of Florida, Department of Physics, University of Florida

  • James J Hamlin

    University of Florida, Department of Physics, University of Florida