Energy loss of charged particles traversing multilayer graphene
Samo za registrovane korisnike
2015
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
We derive a dielectric response model for dynamic polarization of freestanding multilayer graphene induced by an external charged particle moving at an arbitrary angle of incidence. Using a two-dimensional, two-fluid hydrodynamic model for the single-layer polarizability, we evaluate the probability density for energy loss and the total energy loss of fast electrons traversing graphene under normal incidence for a broad range of the incident electron kinetic energies. Numerical results are obtained in the cases of one, two, and three layers of graphene. When the incident electron kinetic energy T increases, both the probability density and the total energy loss strongly decrease. It is also found that when the kinetic energy T decreases, the pi and sigma + pi plasmon peak positions move to higher energies omega. In addition, the total energy loss approximately scales with the number of graphene layers N for all observed incident electron kinetic energies. (C) 2015 Elsevier B.V. All rig...hts reserved.
Ključne reči:
Graphene / Energy loss / Dielectric functionIzvor:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2015, 347, 7-10Finansiranje / projekti:
DOI: 10.1016/j.nimb.2015.01.057
ISSN: 0168-583X; 1872-9584
WoS: 000350840200002
Scopus: 2-s2.0-84922495947
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Borka, Duško AU - Radović, Ivan AU - Vuković, Katarina PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/437 AB - We derive a dielectric response model for dynamic polarization of freestanding multilayer graphene induced by an external charged particle moving at an arbitrary angle of incidence. Using a two-dimensional, two-fluid hydrodynamic model for the single-layer polarizability, we evaluate the probability density for energy loss and the total energy loss of fast electrons traversing graphene under normal incidence for a broad range of the incident electron kinetic energies. Numerical results are obtained in the cases of one, two, and three layers of graphene. When the incident electron kinetic energy T increases, both the probability density and the total energy loss strongly decrease. It is also found that when the kinetic energy T decreases, the pi and sigma + pi plasmon peak positions move to higher energies omega. In addition, the total energy loss approximately scales with the number of graphene layers N for all observed incident electron kinetic energies. (C) 2015 Elsevier B.V. All rights reserved. T2 - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms T1 - Energy loss of charged particles traversing multilayer graphene VL - 347 SP - 7 EP - 10 DO - 10.1016/j.nimb.2015.01.057 ER -
@article{ author = "Borka, Duško and Radović, Ivan and Vuković, Katarina", year = "2015", abstract = "We derive a dielectric response model for dynamic polarization of freestanding multilayer graphene induced by an external charged particle moving at an arbitrary angle of incidence. Using a two-dimensional, two-fluid hydrodynamic model for the single-layer polarizability, we evaluate the probability density for energy loss and the total energy loss of fast electrons traversing graphene under normal incidence for a broad range of the incident electron kinetic energies. Numerical results are obtained in the cases of one, two, and three layers of graphene. When the incident electron kinetic energy T increases, both the probability density and the total energy loss strongly decrease. It is also found that when the kinetic energy T decreases, the pi and sigma + pi plasmon peak positions move to higher energies omega. In addition, the total energy loss approximately scales with the number of graphene layers N for all observed incident electron kinetic energies. (C) 2015 Elsevier B.V. All rights reserved.", journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms", title = "Energy loss of charged particles traversing multilayer graphene", volume = "347", pages = "7-10", doi = "10.1016/j.nimb.2015.01.057" }
Borka, D., Radović, I.,& Vuković, K.. (2015). Energy loss of charged particles traversing multilayer graphene. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 347, 7-10. https://doi.org/10.1016/j.nimb.2015.01.057
Borka D, Radović I, Vuković K. Energy loss of charged particles traversing multilayer graphene. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2015;347:7-10. doi:10.1016/j.nimb.2015.01.057 .
Borka, Duško, Radović, Ivan, Vuković, Katarina, "Energy loss of charged particles traversing multilayer graphene" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 347 (2015):7-10, https://doi.org/10.1016/j.nimb.2015.01.057 . .