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CONDENSED MATTER
Band structure of bilayer graphene intercalated by potassium atoms. Ab initio calculations
Z. A. Akhmatova, Z. A. Akhmatovab a Kabardino-Balkarian State University, Nalchik, 360004 Russia
b Southern Mathematical Institute, Vladikavkaz Scientific Center, Russian Academy of Sciences, Vladikavkaz, 362027 Russia
Abstract:
Using the electron density functional theory, the electronic band structure of pure and potassium-intercalated bilayer graphene has been studied. It is shown that after the intercalation process, a band gap appears in the band structure of bilayer graphene. In addition, the energy gap changes nonlinearly depending on the intercalate concentration in the interlayer space of bilayer graphene. We also calculated the energy spectra of bilayer graphene containing vacancy defects, the presence of which leads to the appearance of mid-gap states.
Received: 30.12.2022 Revised: 28.01.2023 Accepted: 01.02.2023
Citation:
Z. A. Akhmatov, Z. A. Akhmatov, “Band structure of bilayer graphene intercalated by potassium atoms. Ab initio calculations”, Pis'ma v Zh. Èksper. Teoret. Fiz., 117:5 (2023), 363–368; JETP Letters, 117:5 (2023), 357–362
Linking options:
https://www.mathnet.ru/eng/jetpl6885 https://www.mathnet.ru/eng/jetpl/v117/i5/p363
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Abstract page: | 57 | References: | 15 | First page: | 6 |
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