(color online) Modified Fermi surface nesting function ξ ( q ) (a), γ ( q ) (b), and λ ( q ) (c) of electron-doped arsenenes. Panels (d) and (e) represent the λ ( q ) in the whole Brillouin zone for 0.1 e/cell and 0.2 e/cell doping, respectively. It is noted that the reciprocal unit cell instead of the first Brillouin zone is used.