Odd Parity and Line Nodes in Heavy Fermion Superconductors

Abstract

Group theory arguments have demonstrated that a general odd parity order parameter cannot have line nodes in the presence of spin-orbit coupling. In this paper, it is shown that these arguments do not hold on the $k_z=\pi /c$ zone face of a hexagonal close packed lattice. In particular, three of the six odd parity representations vanish identically on this face. This has potential relevance to the heavy fermion superconductor $UP{t}_3$.

5 pages, revtex

References in corpus (3)

• The Order Parameter for the Superconducting Phases of UPt${}_3$
• Hunds Rule Theory for Heavy Fermion Superconductors
• An Orbitally Degenerate Spin Fluctuation Model for Heavy Fermion Superconductivity

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