Extended Data Fig. 2: The structure of the spontaneous fields and currents in an s + is superconductor.
From: Superconductivity with broken time-reversal symmetry inside a superconducting s-wave state
The structure of the spontaneous magnetic field (left panels) and spontaneous currents (right panels) produced by the spherically-symmetric inhomogeneity in anisotropic s + is and s − is states. In the left panels the red/blue arrows show clockwise/counter-clockwise parts of the magnetic field distribution. The clockwise and counter-clockwise field is generated by the supercurrents with jz > 0 (red arrows) and jz < 0 (blue arrows) shown in the right panels. Notice that the magnetic field and current directions are opposite in s + is and s − is states. The length-scale in the axes is given in units of the zero-temperature coherence length ħvF/Tc. The x, y and z axes are chosen along the a, b and c crystallographic directions, respectively.
