Triplet superconductivity in the skutteruditeK. Maki1, S. Haas1, D. Parker1, H. Won2, K. Izawa3 and Y. Matsuda3
1 Department of Physics and Astronomy, University of Southern California Los Angeles, CA 90089-0484, USA
2 Department of Physics, Hallym University - Chunchon 200-702, South Korea
3 Institute for Solid State Physics, University of Tokyo Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
received 24 June 2004; accepted in final form 8 October 2004
published online 10 November 2004
There is mounting evidence for triplet superconductivity in the recently discovered skutterudite compound . In this work, we propose nodal order parameters for the A and B phases of this superconductor which are consistent with angle-dependent magnetothermal conductivity measurements and with low-temperature thermal conductivity data in the range . The quasiparticle density of states and the thermal conductivity are derived within the quasiclassical approximation.
74.70.Tx - Heavy-fermion superconductors.
71.27.+a - Strongly correlated electron systems; heavy fermions.
74.20.Rp - Pairing symmetries (other than s-wave).
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