What Does the Field Dependence of the Thermal Conductivity of the Heavy Fermion Superconductor UPt{sub 3} Tell Us about the Symmetry of the Order Parameter?
- SUPRAS, Institute of Physics, University of Liege, B-4000 Liege (Belgium)
We investigate the field dependence of the thermal conductivity {kappa} of UPt{sub 3} single crystals for magnetic fields applied along the basal ({ital ab}) plane and along the {ital c} axis, respectively. The effect of heat carrying electrons scattered by quasiparticle excitations in the vortex cores is calculated for an anisotropic superconducting gap parameter of either E{sub 1g} or E{sub 2u} symmetry. It is shown that the anisotropy of the field dependence of {kappa} allows one to probe the symmetry of the superconducting order parameter and favors the E{sub 2u} gap parameter, i.e., with quadratic point nodes along the {ital c} axis. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 632686
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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