TY  - JOUR
AU  - Bai, Xiang-Jia
AU  - Zhang, Ying-Ying
AU  - Mišković, Zoran L.
AU  - Radović, Ivan
AU  - Li, Chun-Zhi
AU  - Song, Yuan-Hong
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9552
AB  - We analyze the effects of the strain-induced pseudomagnetic field on the subthreshold mechanism of hybridization taking place between the Dirac plasmon in graphene and the surface optical phonon modes in a nearby substrate. It is shown that the pseudomagnetic field exerts quite strong influence on the oscillatory pattern in the total potential in the plane of graphene, as well as on the stopping and the image forces on a charge, which moves parallel to the graphene at a speed below the Fermi velocity, specially for small graphene–substrate gap sizes. One may conclude that the subthreshold mechanism of the plasmon–phonon hybridization can be controlled by varying the pseudomagnetic field strength and the doping density in graphene. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature.
T2  - Plasmonics
T1  - The Effects of Pseudomagnetic Fields on Plasmon–Phonon Hybridization in Supported Graphene Probed by a Moving Charged Particle
VL  - 16
IS  - 4
SP  - 1089
EP  - 1098
DO  - 10.1007/s11468-020-01369-3
ER  - 

@article{
author = "Bai, Xiang-Jia and Zhang, Ying-Ying and Mišković, Zoran L. and Radović, Ivan and Li, Chun-Zhi and Song, Yuan-Hong",
year = "2021",
abstract = "We analyze the effects of the strain-induced pseudomagnetic field on the subthreshold mechanism of hybridization taking place between the Dirac plasmon in graphene and the surface optical phonon modes in a nearby substrate. It is shown that the pseudomagnetic field exerts quite strong influence on the oscillatory pattern in the total potential in the plane of graphene, as well as on the stopping and the image forces on a charge, which moves parallel to the graphene at a speed below the Fermi velocity, specially for small graphene–substrate gap sizes. One may conclude that the subthreshold mechanism of the plasmon–phonon hybridization can be controlled by varying the pseudomagnetic field strength and the doping density in graphene. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature.",
journal = "Plasmonics",
title = "The Effects of Pseudomagnetic Fields on Plasmon–Phonon Hybridization in Supported Graphene Probed by a Moving Charged Particle",
volume = "16",
number = "4",
pages = "1089-1098",
doi = "10.1007/s11468-020-01369-3"
}

Bai, X., Zhang, Y., Mišković, Z. L., Radović, I., Li, C.,& Song, Y.. (2021). The Effects of Pseudomagnetic Fields on Plasmon–Phonon Hybridization in Supported Graphene Probed by a Moving Charged Particle. in Plasmonics, 16(4), 1089-1098.
https://doi.org/10.1007/s11468-020-01369-3

Bai X, Zhang Y, Mišković ZL, Radović I, Li C, Song Y. The Effects of Pseudomagnetic Fields on Plasmon–Phonon Hybridization in Supported Graphene Probed by a Moving Charged Particle. in Plasmonics. 2021;16(4):1089-1098.
doi:10.1007/s11468-020-01369-3 .

Bai, Xiang-Jia, Zhang, Ying-Ying, Mišković, Zoran L., Radović, Ivan, Li, Chun-Zhi, Song, Yuan-Hong, "The Effects of Pseudomagnetic Fields on Plasmon–Phonon Hybridization in Supported Graphene Probed by a Moving Charged Particle" in Plasmonics, 16, no. 4 (2021):1089-1098,
https://doi.org/10.1007/s11468-020-01369-3 . .

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 . .

TY  - JOUR
AU  - Radović, Ivan
AU  - Song, Yuan-Hong
AU  - Zhang, Ying-Ying
AU  - Borka, Duško
AU  - Mišković, Zoran L.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1518
AB  - We use the dielectric response formalism to explore the wake effect due to excitation of the sheet plasmons in graphene and in a two-dimensional (2D) electron gas with a parabolic energy band, caused by an externally moving charged particle. Using the random phase approximation to obtain the relevant polarisation functions, we have found similarities as well as some differences in the V-shaped wake patterns that result from different structures of the single-particle excitation spectra in those two electron systems. While both systems exhibit a velocity threshold for the charged particle to be able to excite a wake, graphene shows some irregularities in the wake oscillations behind that particle, whereas the 2D electron gas exhibits a larger opening angle of its V-shaped wake.
T2  - Radiation Effects and Defects in Solids
T1  - Excitation of plasmon wakes in two-dimensional electron systems by moving external charged particles
VL  - 172
IS  - 1-2
SP  - 90
EP  - 99
DO  - 10.1080/10420150.2017.1286661
ER  - 

@article{
author = "Radović, Ivan and Song, Yuan-Hong and Zhang, Ying-Ying and Borka, Duško and Mišković, Zoran L.",
year = "2017",
abstract = "We use the dielectric response formalism to explore the wake effect due to excitation of the sheet plasmons in graphene and in a two-dimensional (2D) electron gas with a parabolic energy band, caused by an externally moving charged particle. Using the random phase approximation to obtain the relevant polarisation functions, we have found similarities as well as some differences in the V-shaped wake patterns that result from different structures of the single-particle excitation spectra in those two electron systems. While both systems exhibit a velocity threshold for the charged particle to be able to excite a wake, graphene shows some irregularities in the wake oscillations behind that particle, whereas the 2D electron gas exhibits a larger opening angle of its V-shaped wake.",
journal = "Radiation Effects and Defects in Solids",
title = "Excitation of plasmon wakes in two-dimensional electron systems by moving external charged particles",
volume = "172",
number = "1-2",
pages = "90-99",
doi = "10.1080/10420150.2017.1286661"
}

Radović, I., Song, Y., Zhang, Y., Borka, D.,& Mišković, Z. L.. (2017). Excitation of plasmon wakes in two-dimensional electron systems by moving external charged particles. in Radiation Effects and Defects in Solids, 172(1-2), 90-99.
https://doi.org/10.1080/10420150.2017.1286661

Radović I, Song Y, Zhang Y, Borka D, Mišković ZL. Excitation of plasmon wakes in two-dimensional electron systems by moving external charged particles. in Radiation Effects and Defects in Solids. 2017;172(1-2):90-99.
doi:10.1080/10420150.2017.1286661 .

Radović, Ivan, Song, Yuan-Hong, Zhang, Ying-Ying, Borka, Duško, Mišković, Zoran L., "Excitation of plasmon wakes in two-dimensional electron systems by moving external charged particles" in Radiation Effects and Defects in Solids, 172, no. 1-2 (2017):90-99,
https://doi.org/10.1080/10420150.2017.1286661 . .

TY  - JOUR
AU  - Zhang, Ying-Ying
AU  - Song, Yuan-Hong
AU  - Radović, Ivan
AU  - Mišković, Zoran L.
AU  - Wang, You-Nian
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1706
AB  - We study plasmon excitations and channeling trajectories of charged particles in triple-walled carbon nanotubes (TWNTs) based on a semi-classical kinetic model combined with the Molecular Dynamics method. Numerical results show that the outer and inner tubes of a TWNT exert strong influence on the peak structures of the self-energy (or the image potential) and the stopping power curves for the channeling ion, resulting in one or two narrow peaks in the low speed region. In addition, the radial dependencies of the total potential, which includes the image potential due to dynamic polarization of the electron gas in nanotubes and a reactive empirical bond order potential for atomic interactions, are compared for single-walled carbon nanotubes (SWNTs), double-walled carbon nanotubes (DWNTs) and TWNTs. By comparing the ion channeling trajectories in those types of nanotubes, we conclude that the variation of the total energy of ions with their channeling distance along the nanotube axis is related to the types of channeling trajectories, exhibiting smooth helical shapes in TWNTs and a succession of sharp reflections off the wall in SWNTs and DWNTs.
T2  - European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
T1  - Interactions of moving charged particles with triple-walled carbon nanotubes
VL  - 71
IS  - 8
DO  - 10.1140/epjd/e2017-70744-3
ER  - 

@article{
author = "Zhang, Ying-Ying and Song, Yuan-Hong and Radović, Ivan and Mišković, Zoran L. and Wang, You-Nian",
year = "2017",
abstract = "We study plasmon excitations and channeling trajectories of charged particles in triple-walled carbon nanotubes (TWNTs) based on a semi-classical kinetic model combined with the Molecular Dynamics method. Numerical results show that the outer and inner tubes of a TWNT exert strong influence on the peak structures of the self-energy (or the image potential) and the stopping power curves for the channeling ion, resulting in one or two narrow peaks in the low speed region. In addition, the radial dependencies of the total potential, which includes the image potential due to dynamic polarization of the electron gas in nanotubes and a reactive empirical bond order potential for atomic interactions, are compared for single-walled carbon nanotubes (SWNTs), double-walled carbon nanotubes (DWNTs) and TWNTs. By comparing the ion channeling trajectories in those types of nanotubes, we conclude that the variation of the total energy of ions with their channeling distance along the nanotube axis is related to the types of channeling trajectories, exhibiting smooth helical shapes in TWNTs and a succession of sharp reflections off the wall in SWNTs and DWNTs.",
journal = "European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics",
title = "Interactions of moving charged particles with triple-walled carbon nanotubes",
volume = "71",
number = "8",
doi = "10.1140/epjd/e2017-70744-3"
}

Zhang, Y., Song, Y., Radović, I., Mišković, Z. L.,& Wang, Y.. (2017). Interactions of moving charged particles with triple-walled carbon nanotubes. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 71(8).
https://doi.org/10.1140/epjd/e2017-70744-3

Zhang Y, Song Y, Radović I, Mišković ZL, Wang Y. Interactions of moving charged particles with triple-walled carbon nanotubes. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics. 2017;71(8).
doi:10.1140/epjd/e2017-70744-3 .

Zhang, Ying-Ying, Song, Yuan-Hong, Radović, Ivan, Mišković, Zoran L., Wang, You-Nian, "Interactions of moving charged particles with triple-walled carbon nanotubes" in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 71, no. 8 (2017),
https://doi.org/10.1140/epjd/e2017-70744-3 . .