Doping effects of CeCo$_{1-x}$Ru$_{x}$In$_{5}$

ORAL

Abstract

CeCoIn$_{5}$ lies in close proximity to a QCP which can be tuned with chemical doping, pressure or magnetic field. In this work, single crystals of Ruthenium doped CeCoIn$_{5}$ were prepared by means of self-flux in Indium. The lattice structure of CeCo$_{1-x}$Ru$_{x}$In$_{5}$ was identified as tetragonal by powder XRD with slightly increasing lattice constants. The results of electrical resistivity down to 1.8 K reveals that both coherence (T*) and superconducting transition (Tc) temperatures are decreasing monotonically with increasing Ru doping. Antiferromagnetism is anticipated on the basis of both negative chemical pressure and hole doping. Transport and thermodynamic data will be compared and contrasted with results from Rh and Cd doping.

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Authors

  • M.N. Ou

    • Los Alamos National Laboratory; Institute of Physics-Academia Sinica
    • Los Alamos National Lab

  • Y.Y. Chen

    • Institute of Physics-Academia Sinica

  • O. Janka

    • University of California

  • S.M. Kauzlarrich

    • University of California

  • K. Gofryk

    • Los Alamos National Laboratory

  • R.E. Baumbach

    • Los Alamos National Laboratory

  • E.D. Bauer

    • Los Alamos National Laboratory

  • J.D. Thompson

    • Los Alamos National Laboratory

  • F. Ronning

    • Los Alamos National Laboratory