Gap symmetry of superconductivity in UPd2Al3
H. Won, D. Parker, K. Maki, T. Watanabe, K. Izawa, Y. Matsuda
DOI 10.1103/PhysRevB.70.140509 · Physical Review B
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Abstract
The angle-dependent thermal conductivity of the heavy-fermion superconductor UPd2Al3 in the vortex state was recently measured by Watanabe et al. Here we analyze this data from two perspectives: universal heat conduction and the angle dependence. We conclude that the superconducting gap function Δ(k) in UPd2Al3 has horizontal nodes and is given by Δ(k)=Δcos(2χ), with χ=ckz.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UPd2Al3 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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