Effects of point-like disorder on electronic properties of PdTe2 superconductor

ORAL

Abstract

Electric and thermal conductivities were measured before and after the introduction of a controlled point-like disorder in single crystals of PdTe2 by 2.5 MeV electron irradiation. Superconducting transition temperature is suppressed, but not strong enough that together with the exponential variation of the low-temperature London penetration depth indicates nodeless superconductivity. The normal state resistivity perfectly follows the Matthiessen's rule as seen in a parallel upwards shift after irradiation. Its temperature variation can be fitted well by the Bloch-Grüneisen formula with Debye temperature determined from the specific heat. Thermal conductivity measurements show a good agreement with the Wiedemann-Franz law.

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Presenters

  • Erik Timmons

    Department of Physics and Astronomy, Iowa State University, Ames, Iowa, Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

Authors

  • Erik Timmons

    Department of Physics and Astronomy, Iowa State University, Ames, Iowa, Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Makariy Tanatar

    Ames Laboratory, Ames Laboratory US DOE, Ames, Iowa, Ames Laboratory and Iowa State University, Ames, IA, USA, Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Kyuil Cho

    Ames Laboratory US DOE, Ames, Iowa, Ames Laboratory, Ames Laboratory and Iowa state University, USA, Ames Laboratory and Iowa State University, Ames, IA, USA, Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Serafim Teknowijoyo

    Iowa State University, Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Na Hyun Jo

    Iowa State University, Iowa State University and Ames Laboratory, Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA, Department of Physics & Astronomy, Iowa State University, Department of Physics and Astronomy, Iowa State University, Department of physics and astronomy, Iowa State University/Ames Laboratory, Physics, Iowa State University/Ames Laboratory

  • Sergey Budko

    Iowa State University, Department of Physics, Iowa State University, Ames Laboratory, Ames, Iowa 50011, USA, Ames Laboratory, Iowa State University, Ames Laboratory/Iowa State University, Ames Laboratory and Dept. of Phys. and Astro.,, Iowa State Univ., Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA, Ames Lab & Dept of Physics and Astronomy, Iowa State University, Physics, Iowa State University/Ames Laboratory, Iowa State University and Ames Laboratory

  • Paul Canfield

    Ames Laboratory and Dept. of Physics, Iowa State University, Ames Laboratory, U.S. DOE, Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory, Iowa State University, Department of Physics, Iowa State University, Ames Laboratory, Ames, Iowa 50011, USA, Ames Laboratory, Iowa State University, Ames Laboratory/Iowa State University, Iowa State University and Ames Laboratory, Ames Laboratory and Iowa State University, Ames, IA, USA, Ames Laboratory and Dept. of Phys. and Astro.,, Iowa State Univ., Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA, Ames Lab & Dept of Physics and Astronomy, Iowa State University, Department of Physics & Astronomy, Iowa State University, Department of physics and astronomy, Iowa State University/Ames Laboratory, Physics, Iowa State University/Ames Laboratory, Ames Laboratory & Iowa State University, Physics, Iowa State University

  • Ruslan Prozorov

    Ames Laboratory US DOE, Ames, Iowa, Iowa State University, Ames Laboratory, Iowa State University, Ames Laboratory, Ames Laboratory and Iowa state University, USA, Ames Laboratory and Iowa State University, Ames, IA, USA, Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA

  • Marcin Konczykowski

    Laboratoire des Solides Irradiés, Ecole Polytechnique, Palaiseau, France, Ecole Polytechnique, Palaiseau, France, Laboratoire des Solides Irradies, Ecole Polytechnique, France