Abstract
We find possible superconducting states for tetrahedral symmetry crystals with strong spin-orbit coupling using Landau theory. Additional symmetry breaking within the superconducting state is considered. We discuss nodes of the gap functions for the different states, secondary superconducting order parameters, and coupling to the elastic strain. By comparing our results to experiments, we find that superconductivity in is best described by the three-dimensional representations of the point group .
- Received 13 February 2004
DOI:https://doi.org/10.1103/PhysRevB.70.144522
©2004 American Physical Society