Wake effect in graphene due to moving charged particles
Апстракт
We study the wake effect in a supported graphene layer induced by external charged particles moving parallel to it by using the dynamic polarization function of graphene within the random phase approximation for its pi electrons described as Diracs fermions. We explore the effects of a substrate assuming that graphene is supported by an insulating substrate, such as SiO2, and a strongly polar substrate, such as SiC, under the gating conditions. Strong effects are observed in the wake pattern in the induced density of charge carriers in supported graphene due to finite size of the graphene-substrate gap, as well as due to strong coupling effects, and plasmon damping of graphenes pi electrons. We find that the excitation of surface phonons in the substrate may exert quite strong influences on the wake effect in the total electrostatic potential in the graphene plane at low particle speeds.
Извор:
Journal of Physics: Conference Series, 2014, 565Финансирање / пројекти:
- Функционални, функционализовани и усавршени нано материјали (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
- Natural Sciences and Engineering Research Council of Canada
Напомена:
- 27th Summer School and International Symposium on the Physics of Ionized Gases (SPIG), Aug 26-29, 2014, Serbian Acad Sci and Arts, Belgrade, Serbia
DOI: 10.1088/1742-6596/565/1/012009
ISSN: 1742-6588
WoS: 000347717100009
Scopus: 2-s2.0-84919430591
Колекције
Институција/група
VinčaTY - CONF AU - Radović, Ivan AU - Borka, Duško AU - Mišković, Zoran L. PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7046 AB - We study the wake effect in a supported graphene layer induced by external charged particles moving parallel to it by using the dynamic polarization function of graphene within the random phase approximation for its pi electrons described as Diracs fermions. We explore the effects of a substrate assuming that graphene is supported by an insulating substrate, such as SiO2, and a strongly polar substrate, such as SiC, under the gating conditions. Strong effects are observed in the wake pattern in the induced density of charge carriers in supported graphene due to finite size of the graphene-substrate gap, as well as due to strong coupling effects, and plasmon damping of graphenes pi electrons. We find that the excitation of surface phonons in the substrate may exert quite strong influences on the wake effect in the total electrostatic potential in the graphene plane at low particle speeds. C3 - Journal of Physics: Conference Series T1 - Wake effect in graphene due to moving charged particles VL - 565 DO - 10.1088/1742-6596/565/1/012009 ER -
@conference{ author = "Radović, Ivan and Borka, Duško and Mišković, Zoran L.", year = "2014", abstract = "We study the wake effect in a supported graphene layer induced by external charged particles moving parallel to it by using the dynamic polarization function of graphene within the random phase approximation for its pi electrons described as Diracs fermions. We explore the effects of a substrate assuming that graphene is supported by an insulating substrate, such as SiO2, and a strongly polar substrate, such as SiC, under the gating conditions. Strong effects are observed in the wake pattern in the induced density of charge carriers in supported graphene due to finite size of the graphene-substrate gap, as well as due to strong coupling effects, and plasmon damping of graphenes pi electrons. We find that the excitation of surface phonons in the substrate may exert quite strong influences on the wake effect in the total electrostatic potential in the graphene plane at low particle speeds.", journal = "Journal of Physics: Conference Series", title = "Wake effect in graphene due to moving charged particles", volume = "565", doi = "10.1088/1742-6596/565/1/012009" }
Radović, I., Borka, D.,& Mišković, Z. L.. (2014). Wake effect in graphene due to moving charged particles. in Journal of Physics: Conference Series, 565. https://doi.org/10.1088/1742-6596/565/1/012009
Radović I, Borka D, Mišković ZL. Wake effect in graphene due to moving charged particles. in Journal of Physics: Conference Series. 2014;565. doi:10.1088/1742-6596/565/1/012009 .
Radović, Ivan, Borka, Duško, Mišković, Zoran L., "Wake effect in graphene due to moving charged particles" in Journal of Physics: Conference Series, 565 (2014), https://doi.org/10.1088/1742-6596/565/1/012009 . .