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Heavy-fermion superconductivity in CeCoIn5 at 2.3 K

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Published under licence by IOP Publishing Ltd
, , Citation C Petrovic et al 2001 J. Phys.: Condens. Matter 13 L337 DOI 10.1088/0953-8984/13/17/103

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Author affiliations

1 National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32306, USA

2 Condensed Matter and Thermal Physics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA

3 Cavendish Laboratory, University of Cambridge, Cambridge CB3 OHE, UK

Dates

  1. Received 29 March 2000

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0953-8984/13/17/L337

Abstract

We report the observation of heavy-fermion superconductivity in CeCoIn5 at Tc = 2.3 K. When compared to the pressure-induced Tc of its cubic relative CeIn3 (Tc~200 mK), the Tc of CeCoIn5 is remarkably high. We suggest that this difference may arise from magnetically mediated superconductivity in the layered crystal structure of CeCoIn5.

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10.1088/0953-8984/13/17/103