TY  - JOUR
AU  - Krstajić, Predrag
AU  - Van, Duppen B.
AU  - Peeters, F. M.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1269
AB  - The interaction between electrons and plasmons in trilayer graphene is investigated within the Overhauser approach resulting in the "plasmaron" quasiparticle. This interaction is cast into a field theoretical problem, and its effect on the energy spectrum is calculated using improved Wigner-Brillouin perturbation theory. The plasmaron spectrum is shifted with respect to the bare electron spectrum by Delta E(k) similar to 150-200 meV for ABC stacked trilayer graphene and for ABA trilayer graphene by Delta E(k) similar to 30-150 meV [Delta E(k) similar to 1-5 meV] for the hyperbolic (linear) part of the spectrum. The shift in general increases with the electron concentration ne and electron momentum. The dispersion of plasmarons is more pronounced in ABC stacked than in ABA stacked trilayer graphene, because of the different energy band structure and their different plasmon dispersion.
PB  - Amer Physical Soc, College Pk
T2  - Physical Review B
T1  - Plasmons and their interaction with electrons in trilayer graphene
VL  - 88
IS  - 19
SP  - 195423
DO  - 10.1103/PhysRevB.88.195423
ER  - 

@article{
author = "Krstajić, Predrag and Van, Duppen B. and Peeters, F. M.",
year = "2013",
abstract = "The interaction between electrons and plasmons in trilayer graphene is investigated within the Overhauser approach resulting in the "plasmaron" quasiparticle. This interaction is cast into a field theoretical problem, and its effect on the energy spectrum is calculated using improved Wigner-Brillouin perturbation theory. The plasmaron spectrum is shifted with respect to the bare electron spectrum by Delta E(k) similar to 150-200 meV for ABC stacked trilayer graphene and for ABA trilayer graphene by Delta E(k) similar to 30-150 meV [Delta E(k) similar to 1-5 meV] for the hyperbolic (linear) part of the spectrum. The shift in general increases with the electron concentration ne and electron momentum. The dispersion of plasmarons is more pronounced in ABC stacked than in ABA stacked trilayer graphene, because of the different energy band structure and their different plasmon dispersion.",
publisher = "Amer Physical Soc, College Pk",
journal = "Physical Review B",
title = "Plasmons and their interaction with electrons in trilayer graphene",
volume = "88",
number = "19",
pages = "195423",
doi = "10.1103/PhysRevB.88.195423"
}

Krstajić, P., Van, D. B.,& Peeters, F. M.. (2013). Plasmons and their interaction with electrons in trilayer graphene. in Physical Review B
Amer Physical Soc, College Pk., 88(19), 195423.
https://doi.org/10.1103/PhysRevB.88.195423

Krstajić P, Van DB, Peeters FM. Plasmons and their interaction with electrons in trilayer graphene. in Physical Review B. 2013;88(19):195423.
doi:10.1103/PhysRevB.88.195423 .

Krstajić, Predrag, Van, Duppen B., Peeters, F. M., "Plasmons and their interaction with electrons in trilayer graphene" in Physical Review B, 88, no. 19 (2013):195423,
https://doi.org/10.1103/PhysRevB.88.195423 . .

TY  - JOUR
AU  - Krstajić, Predrag
AU  - Peeters, F. M.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1249
AB  - The relation between the energy and momentum of plasmarons in bilayer graphene is investigated within the Overhauser approach, where the electron-plasmon interaction is described as a field theoretical problem. We find that the Dirac-like spectrum is shifted by Delta E(k) similar to 100 divided by 150 meV depending on the electron concentration n(e) and electron momentum. The shift increases with electron concentration as the energy of plasmons becomes larger. The dispersion of plasmarons is more pronounced than in the case of single layer graphene, which is explained by the fact that the energy dispersion of electrons is quadratic and not linear. We expect that these predictions can be verified using angle-resolved photoemission spectroscopy (ARPES).
PB  - Amer Physical Soc, College Pk
T2  - Physical Review B
T1  - Energy-momentum dispersion relation of plasmarons in bilayer graphene
VL  - 88
IS  - 16
SP  - 165420
DO  - 10.1103/PhysRevB.88.165420
ER  - 

@article{
author = "Krstajić, Predrag and Peeters, F. M.",
year = "2013",
abstract = "The relation between the energy and momentum of plasmarons in bilayer graphene is investigated within the Overhauser approach, where the electron-plasmon interaction is described as a field theoretical problem. We find that the Dirac-like spectrum is shifted by Delta E(k) similar to 100 divided by 150 meV depending on the electron concentration n(e) and electron momentum. The shift increases with electron concentration as the energy of plasmons becomes larger. The dispersion of plasmarons is more pronounced than in the case of single layer graphene, which is explained by the fact that the energy dispersion of electrons is quadratic and not linear. We expect that these predictions can be verified using angle-resolved photoemission spectroscopy (ARPES).",
publisher = "Amer Physical Soc, College Pk",
journal = "Physical Review B",
title = "Energy-momentum dispersion relation of plasmarons in bilayer graphene",
volume = "88",
number = "16",
pages = "165420",
doi = "10.1103/PhysRevB.88.165420"
}

Krstajić, P.,& Peeters, F. M.. (2013). Energy-momentum dispersion relation of plasmarons in bilayer graphene. in Physical Review B
Amer Physical Soc, College Pk., 88(16), 165420.
https://doi.org/10.1103/PhysRevB.88.165420

Krstajić P, Peeters FM. Energy-momentum dispersion relation of plasmarons in bilayer graphene. in Physical Review B. 2013;88(16):165420.
doi:10.1103/PhysRevB.88.165420 .

Krstajić, Predrag, Peeters, F. M., "Energy-momentum dispersion relation of plasmarons in bilayer graphene" in Physical Review B, 88, no. 16 (2013):165420,
https://doi.org/10.1103/PhysRevB.88.165420 . .

TY  - JOUR
AU  - Krstajić, Predrag
AU  - Peeters, F. M.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/991
AB  - The Coulomb interaction and the correlation of a remote electron with a single layer of graphene is investigated in the presence of a magnetic field applied perpendicular to the graphene layer. The remote electron polarizes the electron gas in the graphene layer, which we describe in terms of excitations of virtual plasmons in graphene. The composite quasiparticle formed by electron plus polarization is called a plasmon polaron. The ground-state energy of this quasiparticle is calculated within perturbation theory for remote electrons in different environments.
PB  - Amer Physical Soc, College Pk
T2  - Physical Review B
T1  - Remote electron plasmon polaron in graphene
VL  - 85
IS  - 8
SP  - 085436
DO  - 10.1103/PhysRevB.85.085436
ER  - 

@article{
author = "Krstajić, Predrag and Peeters, F. M.",
year = "2012",
abstract = "The Coulomb interaction and the correlation of a remote electron with a single layer of graphene is investigated in the presence of a magnetic field applied perpendicular to the graphene layer. The remote electron polarizes the electron gas in the graphene layer, which we describe in terms of excitations of virtual plasmons in graphene. The composite quasiparticle formed by electron plus polarization is called a plasmon polaron. The ground-state energy of this quasiparticle is calculated within perturbation theory for remote electrons in different environments.",
publisher = "Amer Physical Soc, College Pk",
journal = "Physical Review B",
title = "Remote electron plasmon polaron in graphene",
volume = "85",
number = "8",
pages = "085436",
doi = "10.1103/PhysRevB.85.085436"
}

Krstajić, P.,& Peeters, F. M.. (2012). Remote electron plasmon polaron in graphene. in Physical Review B
Amer Physical Soc, College Pk., 85(8), 085436.
https://doi.org/10.1103/PhysRevB.85.085436

Krstajić P, Peeters FM. Remote electron plasmon polaron in graphene. in Physical Review B. 2012;85(8):085436.
doi:10.1103/PhysRevB.85.085436 .

Krstajić, Predrag, Peeters, F. M., "Remote electron plasmon polaron in graphene" in Physical Review B, 85, no. 8 (2012):085436,
https://doi.org/10.1103/PhysRevB.85.085436 . .

TY  - JOUR
AU  - Krstajić, Predrag
AU  - Peeters, F. M.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/957
AB  - The many-body correction to the band structure of a quasi-free-standing graphene layer is obtained within the Overhauser approach, where the electron-plasmon interaction is described as a field theoretical problem. We find that the Dirac-like spectrum is shifted by Delta E(k = 0), which is on the order of 50-150 meV, depending on the electron concentration n(e), and is in semiquantitative agreement with experimental data. The value of the Fermi velocity is renormalized by several percents and decreases with increasing electron concentration as found experimentally.
PB  - Amer Physical Soc, College Pk
T2  - Physical Review B
T1  - Energy-momentum dispersion relation of plasmarons in graphene
VL  - 85
IS  - 20
SP  - 205454
DO  - 10.1103/PhysRevB.85.205454
ER  - 

@article{
author = "Krstajić, Predrag and Peeters, F. M.",
year = "2012",
abstract = "The many-body correction to the band structure of a quasi-free-standing graphene layer is obtained within the Overhauser approach, where the electron-plasmon interaction is described as a field theoretical problem. We find that the Dirac-like spectrum is shifted by Delta E(k = 0), which is on the order of 50-150 meV, depending on the electron concentration n(e), and is in semiquantitative agreement with experimental data. The value of the Fermi velocity is renormalized by several percents and decreases with increasing electron concentration as found experimentally.",
publisher = "Amer Physical Soc, College Pk",
journal = "Physical Review B",
title = "Energy-momentum dispersion relation of plasmarons in graphene",
volume = "85",
number = "20",
pages = "205454",
doi = "10.1103/PhysRevB.85.205454"
}

Krstajić, P.,& Peeters, F. M.. (2012). Energy-momentum dispersion relation of plasmarons in graphene. in Physical Review B
Amer Physical Soc, College Pk., 85(20), 205454.
https://doi.org/10.1103/PhysRevB.85.205454

Krstajić P, Peeters FM. Energy-momentum dispersion relation of plasmarons in graphene. in Physical Review B. 2012;85(20):205454.
doi:10.1103/PhysRevB.85.205454 .

Krstajić, Predrag, Peeters, F. M., "Energy-momentum dispersion relation of plasmarons in graphene" in Physical Review B, 85, no. 20 (2012):205454,
https://doi.org/10.1103/PhysRevB.85.205454 . .