TY  - JOUR
AU  - He, Xian-Long
AU  - Zhang, Ying-Ying
AU  - Mišković, Zoran L.
AU  - Radović, Ivan
AU  - Li, Chun-Zhi
AU  - Song, Yuan-Hong
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8477
AB  - Abstract: A two-component hydrodynamic model is used to investigate low-energy plasmon excitations within the K and K′ valleys of the π electron bands in doped graphene on a dielectric substrate by a slow charged particle moving parallel to the graphene in the presence of a strain-induced pseudomagnetic field in graphene. Calculations of the stopping and the image forces on the moving charge, as well as of the total electrostatic potential in the plane of graphene are performed. The simulation results indicate that the valley polarization of electrons in graphene resulting from the pseudomagnetic field and the electrostatic coupling between graphene and the supporting substrate both have important impact on the stopping and the image forces, affecting the maximum values and the peak positions of those forces, as well as the velocity threshold for the plasmon excitation. In addition, we also study the dependence of the amplitude and period of the wake potential oscillations on the pseudomagnetic field strength, the gap size between graphene and substrate, as well as the incident particle speed. In particular, our results show that the pseudomagnetic field exerts quite strong influence on the period of the wake potential oscillations at the above-threshold particle speeds, especially for small graphene-substrate gap sizes. Graphical abstract: [Figure not available: see fulltext.] © 2020, EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
T1  - Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field
VL  - 74
IS  - 1
SP  - 18
DO  - 10.1140/epjd/e2019-100450-1
ER  - 

@article{
author = "He, Xian-Long and Zhang, Ying-Ying and Mišković, Zoran L. and Radović, Ivan and Li, Chun-Zhi and Song, Yuan-Hong",
year = "2020",
abstract = "Abstract: A two-component hydrodynamic model is used to investigate low-energy plasmon excitations within the K and K′ valleys of the π electron bands in doped graphene on a dielectric substrate by a slow charged particle moving parallel to the graphene in the presence of a strain-induced pseudomagnetic field in graphene. Calculations of the stopping and the image forces on the moving charge, as well as of the total electrostatic potential in the plane of graphene are performed. The simulation results indicate that the valley polarization of electrons in graphene resulting from the pseudomagnetic field and the electrostatic coupling between graphene and the supporting substrate both have important impact on the stopping and the image forces, affecting the maximum values and the peak positions of those forces, as well as the velocity threshold for the plasmon excitation. In addition, we also study the dependence of the amplitude and period of the wake potential oscillations on the pseudomagnetic field strength, the gap size between graphene and substrate, as well as the incident particle speed. In particular, our results show that the pseudomagnetic field exerts quite strong influence on the period of the wake potential oscillations at the above-threshold particle speeds, especially for small graphene-substrate gap sizes. Graphical abstract: [Figure not available: see fulltext.] © 2020, EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics",
title = "Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field",
volume = "74",
number = "1",
pages = "18",
doi = "10.1140/epjd/e2019-100450-1"
}

He, X., Zhang, Y., Mišković, Z. L., Radović, I., Li, C.,& Song, Y.. (2020). Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 74(1), 18.
https://doi.org/10.1140/epjd/e2019-100450-1

He X, Zhang Y, Mišković ZL, Radović I, Li C, Song Y. Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics. 2020;74(1):18.
doi:10.1140/epjd/e2019-100450-1 .

He, Xian-Long, Zhang, Ying-Ying, Mišković, Zoran L., Radović, Ivan, Li, Chun-Zhi, Song, Yuan-Hong, "Interactions of moving charge with supported graphene in the presence of strain-induced pseudomagnetic field" in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 74, no. 1 (2020):18,
https://doi.org/10.1140/epjd/e2019-100450-1 . .