Electronic specific heat in BaFe${}_{2-x}$Ni${}_x$As${}_2$

Dongliang Gong, Tao Xie, Xingye Lu +7

We have systematically studied the low-temperature specific heat of the BaFe${}_{2-x}$Ni${}_x$As${}_2$ single crystals covering the whole superconducting dome. Using the nonsuperconducti…