JETP Letters

, Volume 100, Issue 5, pp 311–318 | Cite as

Novel type of superlattices based on gapless graphene with the alternating Fermi velocity

  • P. V. RatnikovEmail author
  • A. P. Silin
Condensed Matter


We study a novel type of graphene-based superlattices formed owing to a periodic modulation of the Fermi surface. Such a modulation is possible for graphene deposited on a striped substrate made of materials with substantially different values of the dc permittivity. Similar superlattices appear also in graphene sheets applied over substrates with a periodic array of parallel grooves. We suggest a model describing such superlattices. Using the transfer-matrix technique, we determine the dispersion relation and calculate the energy spectrum of these superlattices. We also analyze at a qualitative level the current-voltage characteristics of the system under study.


Charge Carrier Graphene Sheet JETP Letter Versus Curve Periodic Array 
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Copyright information

© Pleiades Publishing, Inc. 2014

Authors and Affiliations

  1. 1.Lebedev Physical InstituteRussian Academy of SciencesMoscowRussia

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