Partially gapped Fermi surface in the heavy-electron superconductor

✍ Scribed by Maple, M. B.; Chen, J. W.; Dalichaouch, Y.; Kohara, T.; Rossel, C.; Torikachvili, M. S.; McElfresh, M. W.; Thompson, J. D.

• Book ID: 126955074
• Publisher: The American Physical Society
• Year: 1986
• Tongue: English
• Weight: 362 KB
• Volume: 56
• Category: Article
• ISSN: 0031-9007
• DOI: 10.1103/physrevlett.56.185

✦ Synopsis

Transport, thermal, and magnetic data for the heavy-electron system URu2Si2 inicate that a charge-or spin-density-wave transition opens an energy gap of -11 meV over a portion of the Fermi surface below TO=17.5 K and demonstrate that bulk superconductivity occurs below T, =1,5 K. The pressure dependences of To and T, support this interpretation. The unusually large initial slope of the upper critical magnetic field (9.2 T/K) is consistent with the high values of the electronic-specific-heat coefficient and the electrical resistivity.