Electronic nematic correlations in the stress free tetragonal state of BaFe${}_{2-x}$Ni${}_x$As${}_2$

Haoran Man, Xingye Lu, Justin S. Chen +9

We use transport and neutron scattering to study electronic, structural, and magnetic properties of the electron-doped BaFe${}_{2-x}$Ni${}_x$As${}_2$ iron pnictides in the external stres…