Effect of a dc electric field on the high-frequency conductivity of a graphene superlattice |
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| Authors: | E I Kukhar’ S V Kryuchkov E S Ionkina |
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| Institution: | 1.Laboratory of Low-Dimensional Systems,Volgograd State Socio-Pedagogical University,Volgograd,Russia;2.Volgograd State Technical University,Volgograd,Russia |
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| Abstract: | Longitudinal and transverse high-frequency conductivities of a graphene superlattice placed in an additional dc electric field are calculated. It is shown that in a sufficiently strong transverse field, the dependence of the longitudinal high-frequency conductivity of the superlattice on the ac field frequency changes. This effect is explained by the nonadditivity of the electronic spectrum of the investigated structure. |
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