Figure 1: Dislocations and prediction of an enhanced Tc.
From: Enhanced spin-triplet superconductivity near dislocations in Sr2RuO4
(a) Transmission electron microscopy (TEM) image of a Sr2RuO4-Ru eutectic crystal showing a Ru island in the middle and large numbers of dislocations. (b) TEM image of a Sr2RuO4 single-crystal flake, showing dislocations and nanodomains of Ru on the edge. The dislocation lines are the superposition of many layers. Scale bars, 500 nm. (c) Schematic of an edge dislocation caused by an extra layer (purple) in a Sr2RuO4 lattice, indicating that the local fourfold rotational symmetry is broken. The edge dislocation scatters the electron beam in a TEM study, manifesting itself as a dark line in the TEM image. (d) Tch plotted as a function of m1/|μ| and m2/|μ| for |μ|/αTc0=0.4. The value of Tch is represented by a colour scale. The highlighted curve represents the contour of Tch=1.5 K.
