, Volume 46, Issue 5, pp 666–672 | Cite as

Effect of a bichromatic electric field on the current-voltage characteristic of a graphene-based superlattice

  • S. V. Kryuchkov
  • E. I. KuharEmail author
Carbon Systems


The longitudinal current-voltage characteristic of a graphene-based superlattice in high-frequency electric fields, such that the strength of one of the fields oscillates along the superlattice axis and the strength of the other perpendicularly to this axis, is calculated. It is shown that, if there is a transverse high-frequency field only, there exists a possibility for sharply increasing the current density in the negative-differential-conductivity region of the static current-voltage characteristic of the superlattice. The current density exhibits a jump, if the oscillation frequency of the field strength approaches the Bloch oscillation frequency. It is shown that, in such a situation, absorption of an electromagnetic wave in the graphene-based superlattice gives way to amplification.


Transverse Field Longitudinal Electric Field Bloch Oscillation High Frequency Field High Frequency Electric Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  1. 1.Volgograd State Pedagogical UniversityVolgogradRussia
  2. 2.Volgograd State University of TechnologyVolgogradRussia
  3. 3.Volgograd State Medical UniversityVolgogradRussia

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