Electromagnetic radiation of electrons in corrugated graphene
- Authors: Ktitorov S.A.1,2, Myhamadiarov R.I.1
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Affiliations:
- Ioffe Physical–Technical Institute
- Saint Petersburg Electrotechnical University “LETI”, ul. Prof. Popova 5
- Issue: Vol 50, No 8 (2016)
- Pages: 1060-1064
- Section: Carbon Systems
- URL: https://journals.rcsi.science/1063-7826/article/view/197654
- DOI: https://doi.org/10.1134/S1063782616080157
- ID: 197654
Cite item
Abstract
Bremsstrahlung in corrugated single-layer graphene in the presence of a ballistic transport current is analyzed. Radiation of a similar nature is observed in undulators and wigglers. Regular and chaotic corrugations (ripples) are considered. It is shown that the quadratic relation between the Monge membrane function and the synthetic calibration field leads to the appearance of a central peak in the radiation spectral density. Possible formation mechanisms of single-layer graphene corrugation are proposed. In one case, the corrugation is considered as an incommensurate superstructure in a two-dimensional crystal, resulting from instability developing in the optical phonon subsystem with the formation of a periodic soliton train. Corrugation results from the interaction of subsystems. Another possible mechanism consists in instability of the membrane flat state due to strong fluctuations characteristic of two-dimensional systems.
About the authors
S. A. Ktitorov
Ioffe Physical–Technical Institute; Saint Petersburg Electrotechnical University “LETI”, ul. Prof. Popova 5
Author for correspondence.
Email: ktitorov@mail.ioffe.ru
Russian Federation, ul. Politekhnicheskaya 26, St. Petersburg, 194021; St. Petersburg, 197376
R. I. Myhamadiarov
Ioffe Physical–Technical Institute
Email: ktitorov@mail.ioffe.ru
Russian Federation, ul. Politekhnicheskaya 26, St. Petersburg, 194021