Fig. 4: Evidence for the control of nematic superconducting domains with strain.
From: Uniaxial-strain control of nematic superconductivity in SrxBi2Se3
a In-plane field angle ϕab dependence of the upper critical field Hc2 at 2.2 K for various criteria (see “Methods” section), which are indicated with a number in the top-left corner of each sub-panel. The curves colored from black to blue are in the order of increasing compressive strain; the numbers in the legend indicate the value of Δεxx. The results of a simulation are shown in the second column (see “Methods” section) capturing key features of the observation. b Schematic showing spatial configurations of nematic superconducting domains controlled in-situ by the uniaxial strain in our experiment. The yellow regions are the minor domains (Y1 and Y2), which are suppressed by the application of compressive strain, as evidenced by the changes in the Hc2(ϕab) curves. Source data are provided as a Source Data file.
