Effect of residual stress on nematic domains in BaFe2−<italic>x</italic>Ni<italic>x</italic>As2 studied by angular magnetoresistance

Effect of residual stress on nematic domains in BaFe_2−xNi_xAs₂ studied by angular magnetoresistance

Hu Ding¹, Zhang Wenliang¹, Wei Yuan¹, Zhang Xiaotian¹, Ren Cong¹, Shan Lei^{1, 2}, Ya Yi-feng^{1, 2}, Luo Huiqian¹, Li Shiliang^{1, 2, †,}

Angular magnetoresistence of BaFe_1.935Ni_0.065As₂ with current along the (110) direction at (a) 50 K and (b) 120 K. The measurements with current along the (100) direction are shown in panels (c) and (d) at 50 K and 120 K, respectively. The inset of panel (b) shows the sketch diagram of the measurement, where θ is defined as the angle between magnetic field and current. All the measurements are taken at 9 Tesla. The solid red lines are fitted curves according to Eq. (1). The blue and green dashed lines are the positions of maximum values in panels (a) and (b), respectively.