Symmetry of the gap in superconducting URu2Si2
K. Hasselbach, J. R. Kirtley, J. Flouquet
DOI 10.1103/PhysRevB.47.509 · Physical Review B
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Abstract
We have modeled the specific heat in the superconducting state of the heavy-fermion compound URu2Si2, considering all symmetry-allowed gap functions. The best agreement with experiment occurs for a single line of zeroes. In this case there is excellent agreement on the size of the step in specific heat at the critical temperature and good agreement on the power law of the temperature dependence below Tc. Although the strikingly linear dependence of C on T2 that is experimentally observed is not simply reproduced in our modeling, it can be approximated by assuming a slightly larger gap amplitude than predicted by weak-coupling theory.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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