Abstract
The dispersion relation for plasma waves in a graphene bilayer is studied. The effect of the difference of potentials between graphene layers on the dispersion line curvature for plasmons is studied in a random phase approximation. The plasmon energy and group velocity can be controlled by varying the noted potential difference. The dependence of the plasmon energy on the voltage between graphene layers is nonmonotonic. The temperature dependence of the plasmon dispersion law is analyzed.
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Funding
This work was supported by the Ministry of Education and Science of the Russian Federation in the project part of state task, project no. 3.2797.2017/4.6.
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Translated by Yu. Ryzhkov
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Kukhar, E.I., Kryuchkov, S.V. Propagation of Plasmons in a Graphene Bilayer in a Transverse Electric Field. Phys. Solid State 62, 196–199 (2020). https://doi.org/10.1134/S1063783420010199
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DOI: https://doi.org/10.1134/S1063783420010199