Thermal conductivity in the vortex state of the superconductor UPd2Al3
L. Tewordt, D. Fay
DOI 10.1103/PhysRevB.72.014502 · Physical Review B
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Abstract
The magneto-thermal conductivity κ is calculated for the vortex state of UPd2Al3 by assuming horizontal gap nodes. The Green’s function method we employed takes into account the effects of supercurrent flow and Andreev scattering on the quasiparticles due to Abrikosov’s vortex lattice order parameter. The calculated angular dependence of κyy for field rotation θ0 in the ac plane depends strongly on field strength H, impurity scattering, anisotropy of the Fermi velocity, and temperature. For finite temperatures and the clean unitary scattering limit we get qualitative agreement with recent experiments for all four proposed gap functions having horizontal line nodes at ckz=0, ±π∕4, and ±π∕2.
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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