Figure 2 : The obtained phase diagram of BaFe2−xNixAs2.

From: Quantum criticality in electron-doped BaFe2−xNixAs2

Figure 2

(a) The residual resistivity ρ0 and the coefficient A as a function of Ni-doping x. (b) The obtained phase diagram of BaFe2−xNixAs2. The TN and θ are obtained from NMR spectra and 1/T1T, respectively. AF and SC denote the antiferromagnetically ordered and the superconducting states, respectively. The solid and dashed lines are the guides to the eyes. Colours in the normal state represent the evolution of the exponent n in the resistivity fitted by ρab=ρ0+ATn. The light yellow region at x=0.10 shows that the resistivity is T-linear. The error bar for θ is the s.d. in the fitting of 1/T1T. The error bar for Ts represents the temperature interval in measuring the NMR spectra.