Generation of valley pump currents in silicene Project supported by the National Natural Science Foundation of China (Grant Nos. 11274059, 11574045, and 11704165). |
Valley-resolved pumped current ILK(K′) as a function of ϕ. Other parameters are E = 0.01 eV, A0 = 1 eV, Δ0 = 1 eV, L0 = 0, and L = 10a with a being the lattice constant. |