Strong-Coupling Superconductivity in NaFe${}_{1-x}$Co${}_x$As: the Eliashberg Theory and Beyond

Guotai Tan, Ping Zheng, Xiancheng Wang +8

We study the normal-state and superconducting properties of NaFe${}_{1-x}$Co${}_x$As system by specific heat measurements. Both the normal-state Sommerfeld coefficient and superconduct…