Differences in the Impurity Ionization in Quasi-Classically Strong Constant and Alternating Electric Fields in a Two-Dimensional Superlattice Based on Graphene
- Authors: Badikova P.V.1, Glazov S.Y.1,2, Syrodoev G.A.1
-
Affiliations:
- Volgograd State Socio-Pedagogical University
- Volgograd State Medical University
- Issue: Vol 53, No 7 (2019)
- Pages: 911-918
- Section: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/206483
- DOI: https://doi.org/10.1134/S1063782619070042
- ID: 206483
Cite item
Abstract
The coefficient of the absorption of an electromagnetic wave in a two-dimensional superlattice based on graphene, in the presence of a constant electric field for the case of quasi-classically strong electric fields is investigated. The anisotropy of the absorption coefficient is revealed at different orientations of the vector of the constant electric field and the vector of polarization of the alternating electric field. It is demonstrated that the slow increase in the absorption coefficient at low frequencies is caused by impurity absorption, and its faster increase at higher frequencies is determined by miniband-to-miniband transitions. These peculiar properties can be used for the development of radiation detectors.
About the authors
P. V. Badikova
Volgograd State Socio-Pedagogical University
Email: ser-glazov@yandex.ru
Russian Federation, Volgograd, 400005
S. Yu. Glazov
Volgograd State Socio-Pedagogical University; Volgograd State Medical University
Author for correspondence.
Email: ser-glazov@yandex.ru
Russian Federation, Volgograd, 400005; Volgograd, 400131
G. A. Syrodoev
Volgograd State Socio-Pedagogical University
Email: ser-glazov@yandex.ru
Russian Federation, Volgograd, 400005