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APS » Journals » Phys. Rev. B » Volume 46 » Issue 9
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Phys. Rev. B 46, 5826–5829 (1992)

Point-contact spectroscopy of superconducting URu2Si2

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K. Hasselbach and J. R. Kirtley
IBM Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598

P. Lejay
Centre de Recherches sur les Tres Basses Temperatures, C.N.R.S., Boîte Postal 166X, 38042 Grenoble CEDEX, France

Received 5 February 1992; published in the issue dated 1 September 1992

We present point-contact measurements of the antiferromagnetic heavy-fermion superconductor URu2Si2. Our data in the superconducting state agree remarkably well with the theory of Blonder, Tinkham, and Klapwijk (BTK), and are consistent with a gap with d-wave symmetry. In the normal state a ‘‘gap’’ in the conductance develops as the temperature is lowered below the Néel temperature. The persistence of this gap into the superconducting state supports the view that magnetically correlated electrons participate in the superconductivity.

© 1992 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.46.5826
DOI:
10.1103/PhysRevB.46.5826
PACS:
74.70.Tx, 75.20.Hr, 73.40.Jn
 
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