Particle–hole fluctuations and possible superconductivity in doped <i>α</i>-RuCl<sub>3</sub>

Particle–hole fluctuations and possible superconductivity in doped α-RuCl₃

Wang Bin-Bin¹, Wang Wei¹, Yu Shun-Li^{1, 2, †}, Li Jian-Xin^{1, 2, ‡}

Static susceptibilities and superconducting gap functions for different electron concentrations: (a), (d), (g) n_e=9.8, (b), (e), (h) n_e=9.7, and (c), (f), (i) n_e=9.6. The up panel shows the j_eff = 1/2 pseudospin susceptibilities S zz (blue), S xx (green), S yy (red), − S xy (magenta), and the largest eigenvalue of χ ^ defined in Eq. (3) (black) along the Γ –M–K– Γ path. Middle panel: the distribution of the sum of the pseudospin susceptibility ∑ η S η η ( q ) in the first Brillouin zone. Panels (g), (h), and (i) are the pairing functions for n_e=9.8, n_e=9.7, and n_e=9.6, respectively.