1. Gap Symmetry of Superconductivity in UPd2Al3
- Author
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Won, H., Parker, D., Maki, K., Watanabe, T., and Matsuda, K. Izawa Y.
- Subjects
Condensed Matter - Superconductivity - Abstract
The angle dependent thermal conductivity of the heavy-fermion superconductor UPd$_2$Al$_3$ 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 $\Delta({\bf k})$ in UPd$_2$Al$_3$ has horizontal nodes and is given by $\Delta({\bf k}) =\Delta\cos(2\chi)$, with $\chi = ck_{z}$., Comment: 8 pages, 4 figures, improved figures in replacement
- Published
- 2004
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