dc.description |
There are now many nodal superconductors in heavy-fermion (HF) systems, charge-conjugated organic metals, high-T<sub>c</sub> cuprates and ruthenates. On the other hand, only few of them have well established Δ(k). We present here a study of the angular-dependent thermal conductivity in the vortex state of some of the nodal superconductors. We hope it will help to identify the nodal directions in Δ(k) of UPd<sub>2</sub>Al<sub>3</sub>, UNi<sub>2</sub>Al<sub>3</sub>, UBe<sub>13</sub> and URu<sub>2</sub>Si<sub>2</sub>. |