Observation of Superconductivity in Heavy-Fermion Compounds of Ce2 CoIn8.

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  • Chen Genfu
    Department of Electrical and Computer Engineering, Nagoya Institute of Technology, Nagoya 466-8555
  • Ohara Shigeo
    Department of Electrical and Computer Engineering, Nagoya Institute of Technology, Nagoya 466-8555
  • Hedo Masato
    The Institute for Solid State Physics, The University of Tokyo, Kashiwa 277-8581
  • Uwatoko Yoshiya
    The Institute for Solid State Physics, The University of Tokyo, Kashiwa 277-8581
  • Saito Kazuya
    Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043
  • Sorai Michio
    Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043
  • Sakamoto Isao
    Department of Electrical and Computer Engineering, Nagoya Institute of Technology, Nagoya 466-8555

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  • Observation of Superconductivity in Heavy-Fermion Compounds of Ce<sub>2</sub>CoIn<sub>8</sub>

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Abstract

We succeeded in growing a single crystal of Ce2CoIn8 by the flux method. The results of specific heat and electrical resistivity measurements indicate that Ce2CoIn8 is a heavy-fermion superconductor below 0.4 K with an electronic specific heat coefficient γ as large as 500 mJ/K2mol-Ce.

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