Figure 1

The patters of the magnetic response M(k, k′) on the kx − ky plane, for incident momentum k = (k0, 0) and scattered momentum k′ = (kx, ky), for (a–d) k0 = Ω/2 = 0.5, A0 = 0, 0.2, 0.3, 0.5, (e) A0 = 0.2, Ω = 0.4, 0.5, 0.7, and (f) Ω = 0.7, A0 = 0.2, 0.3, 0.4. The other parameters are chosen as ε = ħυFk0, U0 = 5, UM = 0, Ac = 0, rimp = 0, ħ = 1 and Λ = 2.