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Effect of Electron Irradiation on the Interplay of Charge Density Wave and Superconductivity in 3-4-13 Stannides

ORAL

Abstract

The evolution of temperature-dependent resistivity with disorder induced by 2.5 MeV electron irradiation was studied in the “3-4-13” stannides, (Ca, Sr)3(Rh, Ir)3Sn13 of various compositions. Of particular interest is the interplay between charge density waves (CDW) and superconductivity. Unlike virtually two-dimensional layered chalcogenides (e.g., NbSe2), this system has a cubic crystal structure allowing us to study rare three-dimensional coexistence of these long-range orders. A variety of responses can be expected, from direct competition for the electronic states at the Fermi level to possible cooperation via the softening of the phonon modes. Disorder is a unique tuning parameter that gently probes the system without affecting the electronic band structure.

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Presenters

  • Elizabeth Krenkel

    Ames Lab

Authors

  • Elizabeth Krenkel

    Ames Lab

  • Makariy Tanatar

    Ames Laboratory, Ames Laboratory, Ames, IA, Ames Lab

  • Erik I Timmons

    Iowa State University, Department of Physics and Astronomy, Iowa State University, Ames Laboratory/Iowa State University, Ames Lab

  • Ruslan Prozorov

    Iowa State University, Ames Laboratory, Ames, IA, Department of Physics and Astronomy, Iowa State University, Ames Laboratory, Ames Laboratory/Iowa State University, Ames Lab

  • Kefeng Wang

    University of Maryland, College Park, Brookhaven National Laboratory

  • Cedomir Petrovic

    Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, CMPMS Department, Brookhaven National Laboratory

  • Romain Grasset

    École Polytechnique