Tuning the Quantum Critical Points in CeCoIn$_{5}$ and CeRhIn$_{5}$ Through Pt Doping: Synthesis, Single Crystal and Physical Property Studies

ORAL

Abstract

The well known CeCoIn$_{5}$ and CeRhIn$_{5}$ compounds provide an excellent opportunity for understanding the physics of heavy fermion superconductivity as well as quantum criticality in correlated electron intermetallics. Besides using hydrostatic pressure as a means to tune the physics of these materials, chemical doping has also proved essential for moving through the superconducting/magnetic boundary in these materials. We extend chemical substitution in CeCoIn$_{5}$ and CeRhIn$_{5}$ to another transition metal, Pt, and report on the synthesis, structure, and physical properties of single crystals of CePt$_{x}$Co$_{1-x}$In$_{5}$ and CePt$_{x}$Rh$_{1-x}$In$_{5}$. Single crystal X-ray diffraction confirmed the tetragonal structure of both systems which crystallize with the $P$4/\textit{mmm} space group and are derivatives of the parent compounds CeCoIn$_{5}$ and CeRhIn$_{5}$, respectively. We report the physical property measurements, which include magnetic susceptibility, heat capacity, and electrical resistivity.

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Authors

  • Paul Tobash

    • Los Alamos National Laboratory

  • Krzysztof Gofryk

    • MPA-10, Los Alamos National Laboratory
    • Los Alamos National Laboratory

  • Filip Ronning

    • Los Alamos National Laboratory
    • MPA-10, Los Alamos National Laboratory
    • Los Alamos National Lab, MPA-CMMS
    • Los Alamos National Laboratory, Los Alamos, NM 87545

  • Joe Thompson

    • Los Alamos National Laboratory
    • Los Alamos Nat. Lab.
    • Los Alamos National Laboratory, Los Alamos, NM 87545

  • Stanislav Stoyko

    • Department of Chemistry, University of Alberta

  • Arthur Mar

    • Department of Chemistry, University of Alberta

  • Eric Bauer

    • Los Alamos Natl. Lab., NM, USA
    • Los Alamos National Lab, MPA-CMMS
    • Los Alamos Nat. Lab.
    • MPA-CMMS, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
    • Los Alamos National Laboratory
    • Los Alamos National Laboratory, Los Alamos, NM 87545