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.

*This work was supported by the US DOE, Office of Science, BES Materials Science and Engineering Division under contract # DE-AC0207CH11358

–

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