Wake effect in interactions of fast ions with supported two-dimensional electron gas
Само за регистроване кориснике
2010
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
We study the interactions of fast charged particles with a two-dimensional electron gas supported by an insulating substrate, describing its high-frequency plasmon excitations by a two-fluid hydrodynamic model with the parameters characteristic of graphene. The induced number density per unit area of electrons in the two-dimensional electron gas and the total electric potential in its plane are derived as functions of the projectile velocity and the particle position We show that, when the speed of the particle moving parallel to the two-dimensional electron gas exceeds a threshold value for the collective excitations of a and pi electrons, the oscillatory wake effect develops both in the induced number density and in the total electric potential trailing the particle When the particle speed matches the phase velocity of the quasiacoustic pi plasmon, the induced number density shows usual wake oscillations, in contrast to the single-walled carbon nanotubes where oscillations precede th...e position of the particle (C) 2010 Elsevier B.V All rights reserved
Кључне речи:
2D electron gas / Graphene / Plasmon excitation / Wake effectИзвор:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2010, 268, 17-18, 2649-2654Финансирање / пројекти:
- Модификација, синтеза и анализа наноструктурних материјала јонским сноповима, гама зрачењем и вакуумским депоновањем (RS-MESTD-MPN2006-2010-141013)
DOI: 10.1016/j.nimb.2010.06.043
ISSN: 0168-583X
WoS: 000281498900014
Scopus: 2-s2.0-77955511567
Колекције
Институција/група
VinčaTY - JOUR AU - Radović, Ivan AU - Borka, Duško PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4095 AB - We study the interactions of fast charged particles with a two-dimensional electron gas supported by an insulating substrate, describing its high-frequency plasmon excitations by a two-fluid hydrodynamic model with the parameters characteristic of graphene. The induced number density per unit area of electrons in the two-dimensional electron gas and the total electric potential in its plane are derived as functions of the projectile velocity and the particle position We show that, when the speed of the particle moving parallel to the two-dimensional electron gas exceeds a threshold value for the collective excitations of a and pi electrons, the oscillatory wake effect develops both in the induced number density and in the total electric potential trailing the particle When the particle speed matches the phase velocity of the quasiacoustic pi plasmon, the induced number density shows usual wake oscillations, in contrast to the single-walled carbon nanotubes where oscillations precede the position of the particle (C) 2010 Elsevier B.V All rights reserved T2 - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms T1 - Wake effect in interactions of fast ions with supported two-dimensional electron gas VL - 268 IS - 17-18 SP - 2649 EP - 2654 DO - 10.1016/j.nimb.2010.06.043 ER -
@article{ author = "Radović, Ivan and Borka, Duško", year = "2010", abstract = "We study the interactions of fast charged particles with a two-dimensional electron gas supported by an insulating substrate, describing its high-frequency plasmon excitations by a two-fluid hydrodynamic model with the parameters characteristic of graphene. The induced number density per unit area of electrons in the two-dimensional electron gas and the total electric potential in its plane are derived as functions of the projectile velocity and the particle position We show that, when the speed of the particle moving parallel to the two-dimensional electron gas exceeds a threshold value for the collective excitations of a and pi electrons, the oscillatory wake effect develops both in the induced number density and in the total electric potential trailing the particle When the particle speed matches the phase velocity of the quasiacoustic pi plasmon, the induced number density shows usual wake oscillations, in contrast to the single-walled carbon nanotubes where oscillations precede the position of the particle (C) 2010 Elsevier B.V All rights reserved", journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms", title = "Wake effect in interactions of fast ions with supported two-dimensional electron gas", volume = "268", number = "17-18", pages = "2649-2654", doi = "10.1016/j.nimb.2010.06.043" }
Radović, I.,& Borka, D.. (2010). Wake effect in interactions of fast ions with supported two-dimensional electron gas. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 268(17-18), 2649-2654. https://doi.org/10.1016/j.nimb.2010.06.043
Radović I, Borka D. Wake effect in interactions of fast ions with supported two-dimensional electron gas. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2010;268(17-18):2649-2654. doi:10.1016/j.nimb.2010.06.043 .
Radović, Ivan, Borka, Duško, "Wake effect in interactions of fast ions with supported two-dimensional electron gas" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 268, no. 17-18 (2010):2649-2654, https://doi.org/10.1016/j.nimb.2010.06.043 . .