Perspectives on Nodal Superconductors

Kazumi Maki；Stephan Haas；David Parker；Hye-Kyung Won

Chinese Journal of Physics

43卷3S期（2005 / 06 / 01）

532 - 542

英文

In the last few years the gap symmetries of many new superconductors, including Sr2RuO4, CeCoIn5, k-(ET)2Cu(NCS)2, YNi2B2C and PrOs4Sb12, have been identified via angle-dependent magnetothermal conductivity measurements. However, a controversy still persists as to the nature of the superconductivity in Sr2RuO4. For PrOs4Sb12, spin-triplet superconductivity has recently been proposed. Here, we also propose g-wave superconductivity for UPd2Al3 (i.e., ∆(k) = ∆cos(2x), x = ckz) based on recent thermal conductivity data.