Dynamic polarization of carbon nano-structures by charged particles

Journal Article · Mon Mar 31 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4870208· OSTI ID:22265923

Miskovic, Zoran L. ^[1]

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1. Department of Applied Mathematics and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)

A brief review is presented of several models used to describe dynamic polarization of carbon nanostructures by charged particles moving in a broad range of incident velocities. For low-energy excitations of graphene we use the polarization function for its π electron bands in the Dirac cone approximations within a dielectric response approach that includes the transverse optical phonons in a polar substrate. For high-energy excitations by fast electrons we use a two-dimensional hydrodynamic model for the π and σ electron systems in the sp{sup 2} bonded carbon with various geometrical shapes. In particular, we use second quantization of the hydrodynamic model to show that large numbers of plasmons may be excited by moderately fast electrons in a C{sub 60} molecule. Results of the theoretical modeling are compared with several experiments.

• OSTI ID: 22265923
• Journal Information: AIP Conference Proceedings, Vol. 1590, Issue 1; Conference: International conference on electronic, photonic, plasmonic and magnetic properties of nanomaterials, London (Canada), 12-16 Aug 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
APPROXIMATIONS
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
DIELECTRIC MATERIALS
ELECTRONS
EXCITATION
FULLERENES
GRAPHENE
HYDRODYNAMIC MODEL
NANOSTRUCTURES
PHONONS
PLASMONS
POLARIZATION
SECOND QUANTIZATION