Regensburg 2019 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 51: Focus Session: Broken Time Reversal Symmetry in Multiband Superconductors
TT 51.1: Hauptvortrag
Donnerstag, 4. April 2019, 09:30–10:00, H2
Evaluation of chiral superconductivity in Sr2RuO4 — •Clifford Hicks — Max Planck Institute for Chemical Physics of Solids, Dresden, Germany
Sr2RuO4 is among the very few superconductors that may have a chiral order parameter. Evidence for chirality comes from Kerr effect, muon spin rotation, and junction critical current measurements. One fundamental consequence of a chiral order parameter is that uniaxial stress, by lifting the tetragonal symmetry of the unpressurised lattice, should lift the degeneracy of the x and y components of the chiral order, resulting in a split transition. In this talk, I will discuss results of a set of measurements performed on uniaxially pressurised Sr2RuO4: scanning SQUID microscopy, heat capacity, and muon spin rotation. I will present an evaluation of chiral superconductivity in Sr2RuO4 taking these new results into account.