Rotational symmetry breaking in the topological superconductor Sr${}_x$Bi${}_2$Se${}_3$ probed by upper-critical field experiments

Y. Pan, A. M. Nikitin, G. K. Araizi +4

Recently it was demonstrated that Sr intercalation provides a new route to induce superconductivity in the topological insulator Bi${}_2$Se${}_3$. Topological superconductors are predi…