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This article is cited in 30 scientific papers (total in 30 papers)
CONDENSED MATTER
Novel type of superlattices based on gapless graphene with the alternating Fermi velocity
P. V. Ratnikov, A. P. Silin P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
Abstract:
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.
Received: 01.07.2014
Citation:
P. V. Ratnikov, A. P. Silin, “Novel type of superlattices based on gapless graphene with the alternating Fermi velocity”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:5 (2014), 349–356; JETP Letters, 100:5 (2014), 311–318
Linking options:
https://www.mathnet.ru/eng/jetpl4112 https://www.mathnet.ru/eng/jetpl/v100/i5/p349
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