Superconductivity enhanced by abundant low-energy phonons in (Sr${}_{1-x}$Ca${}_x$)${}_3$Rh${}_4$Sn${}_{13}$

Yasuhiro Terasaki, Ratsuki Yamaguchi, Yui Ishii +3

The effects of structural quantum criticality on the strong-coupling superconductivity of (Sr${}_{1-x}$Ca${}_x$)${}_3$Rh${}_4$Sn${}_{13}$ have been investigated via electrical resistivity an…