Multigap superconductivity in the heavy-fermion system CeCoIn5

G. Seyfarth; J. P. Brison; G. Knebel; D. Aoki; G. Lapertot; J. Flouquet

doi:10.1103/PhysRevLett.101.046401

Multigap superconductivity in the heavy-fermion system CeCoIn5

G. Seyfarth, J. P. Brison, G. Knebel, D. Aoki, G. Lapertot, J. Flouquet

IMR - Materials Processing and Characterization Division

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52 Citations (Scopus)

Abstract

New thermal conductivity experiments on the heavy-fermion superconductor CeCoIn5 down to 10mK 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.

Original language	English
Article number	046401
Journal	Physical Review Letters
Volume	101
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.101.046401
Publication status	Published - 2008 Jul 21

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10.1103/PhysRevLett.101.046401

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Multigap superconductivity in the heavy-fermion system CeCoIn5

Abstract

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