Xu Yang et al. conducted systematic thermal conductivity measurements on Ce1−xYbxCoIn5(x = 0.013, 0.084, and 0.163) single crystals and found that the finite residual linear term κ0/T is insensitive to Yb doping, verifying the universal heat conduction of the nodal d-wave superconducting gap in Ce1−xYbxCoIn5. Similar universal heat conduction is also observed in the CeCo(In1−yCdy )5 system. These results reveal a robust nodal d-wave gap in CeCoIn5 upon Yb or Cd doping.
Published：2015-12-09
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Xu Yang et al. conducted systematic thermal conductivity measurements on Ce1−xYbxCoIn5(x = 0.013, 0.084, and 0.163) single crystals and found that the finite residual linear term κ0/T is insensitive to Yb doping, verifying the universal heat conduction of the nodal d-wave superconducting gap in Ce1−xYbxCoIn5. Similar universal heat conduction is also observed in the CeCo(In1−yCdy )5 system. These results reveal a robust nodal d-wave gap in CeCoIn5 upon Yb or Cd doping.
