The pyrochlore compound CeRu2 hosts a three-dimensional kagome lattice with flat bands and it’s possible to tune superconductivity in the system under various conditions. Here, by combining muon spin rotation with uniaxial stress and hydrostatic pressure, the authors observe distinct and complementary tuning pathways, including a dome-shaped stress-induce devolution of Tc with a crossover from anisotropic to isotropic s-wave pairing, and a pressure-driven change from nodeless to nodal superconductivity.
- O. Gerguri
- D. Das
- Z. Guguchia