Multigap superconductivity in the heavy-Fermion system CeCoIn5 |
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Authors: | Seyfarth G Brison J P Knebel G Aoki D Lapertot G Flouquet J |
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Institution: | CNRS, Néel Institute, 25 avenue des Martyrs, BP166, 38042 Grenoble Cedex 9, France. |
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Abstract: | New thermal conductivity experiments on the heavy-fermion superconductor CeCoIn5 down to 10 mK rule out the suggested existence of unpaired electrons. Moreover, they reveal strong multigap effects with a remarkably low "critical" field Hc2S for the small gap band, showing that the complexity of heavy-fermion band structure has a direct impact on their response under magnetic field. |
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