Second-order Structural Transition in Superconductor La${}_3$Co${}_4$Sn${}_{13}$

Y. W. Cheung, J. Z. Zhang, J. Y. Zhu +10

The quasi-skutterudite superconductor La${}_3$Co${}_4$Sn${}_{13}$ undergoes a phase transition at $T^{\ast }=152$ K. By measuring the temperature dependence of heat capacity, electrical resist…