Effect of a dc electric field on the high-frequency conductivity of a graphene superlattice


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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.

About the authors

E. I. Kukhar’

Laboratory of Low-Dimensional Systems

Author for correspondence.
Email: eikuhar@yandex.ru
Russian Federation, Volgograd, 400066

S. V. Kryuchkov

Laboratory of Low-Dimensional Systems; Volgograd State Technical University

Email: eikuhar@yandex.ru
Russian Federation, Volgograd, 400066; Volgograd, 400005

E. S. Ionkina

Volgograd State Technical University

Email: eikuhar@yandex.ru
Russian Federation, Volgograd, 400005

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