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Longitudinal conductivity in ABC-stacked trilayer graphene under the irradiating of linearly polarized light


 We study the effect of linearly polarized light on the band structure and longitudinal conductivity in ABC-stacked trilayer graphene. The linearly polarized light can induce a pair of additional points in ABC-stacked trilayer graphene, where conduct and valence bands touch. The locations of these points are determined by the amplitude of the light. Furthermore, the layer pseudospin polarization can be controlled by the light. When the Fermi energy locates at Dirac points, i.e. E
 
 f
 = 0, the longitudinal conductivity shows a resonance phenomena when the light is present. Away from the Dirac points, the longitudinal conductivity is unchanged as varying E
 
 f
 for weak light field at larger Fermi energy, and the amplitude of longitudinal conductivity can be controlled by tuning the light field amplitude. Moreover, the effect of linearly polarized light on resonance phenomena in k-cubic Rashba-Dresselhaus system under the irradiating of linearly polarized light is discussed.