Strong Coupling Superconductivity in the Vicinity of the Structural Quantum Critical Point in (Ca${}_x$Sr${}_{1-x}$)${}_3$Rh${}_4$Sn${}_{13}$

Wing Chi Yu, Yiu Wing Cheung, Paul J. Saines +5

The family of the superconducting quasi-skutterudites (Ca${}_x$Sr${}_{1-x}$)${}_3$Rh${}_4$Sn${}_{13}$ features a structural quantum critical point at $x_c=0.9$, around which a dome-shaped va…