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 =π/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 .
- Received 15 June 1995
DOI:https://doi.org/10.1103/PhysRevB.52.15093
©1995 American Physical Society