Fig. 4: The anomalous, valley and spin Hall effects under the irradiation of CPL.
From: Floquet engineering of anomalous Hall effects in monolayer MoS2

a The α = 0 and α = ±1 Floquet replicas with amplitude A0 = 60 V/c near the K and K′ valleys. The gray dashed lines represent the quasienergy bands, while the color shading indicates the electron number. The inset zooms in the resonance region. b–d The anomalous Hall conductivity σh, valley Hall conductivity σv and spin Hall conductivity σs without and with light, while taking into account different electron occupation for photon energy ℏω = 1.7 eV and ℏω = 1.9 eV in the presence of light. The light blue box in (b) and the red box in (d) are designated for convenient comparison within their respective regimes.