Constraints on a split superconducting transition under uniaxial strain in Sr${}_2$RuO${}_4$ from scanning SQUID microscopy

Eli Mueller, Yusuke Iguchi, Christopher Watson +3

More than two decades after the discovery of superconductivity in Sr${}_2$RuO${}_4$, it is still unclear whether the order parameter has a single component or two degenerate components…