Thermodynamic Evidence for a Two-Component Superconducting Order Parameter in Sr${}_2$RuO${}_4$

Sayak Ghosh, Arkady Shekhter, F. Jerzembeck +6

Sr${}_2$RuO${}_4$ has stood as the leading candidate for a spin-triplet superconductor for 26 years. Recent NMR experiments have cast doubt on this candidacy, however, and it is diffic…