Field angle-dependent thermal conductivity in nodal superconductors

We apply a semiclassical method to the problem of field angle-dependent oscillations of the density of states and thermal conductivity for nodal superconductors and apply our results to the superconductor PrOs4 Sb12. The oscillatory contributions to the thermal conductivity for all possible point node configurations for a superconductor with Th symmetry are calculated. It is found that experimental results are best accounted for by nodes in the off-axis directions [±sin φ0, 0,±cos φ0], which are associated with the time-reversal breaking, triplet paired phase with symmetry D2 (E).