Effects of deep superconducting gap minima and disorder on residual thermal transport in Sr2RuO4

Recent thermal conductivity measurements on Sr2RuO4 [E. Hassinger , Phys. Rev. X 7, 011032 (2017)10.1103/PhysRevX.7.011032] were interpreted as favoring a pairing gap function with vertical line nodes while conflicting with chiral p-wave pairing. Motivated by this work we study the effects of deep superconducting gap minima on impurity induced quasiparticle thermal transport in chiral p-wave models of Sr2RuO4. Combining a self-consistent …