Effects of point-like disorder on electronic properties of PdTe<sub>2</sub> 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.

*This work was supported by the US DOE, Office of Science, BES Materials Science and Engineering Division under contract # DE-AC02-07CH11358. NHJ was funded by the Gordon and Betty Moore Foundation's EPiQS Initiative through Grant GBMF4411.

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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