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Scientific paper - Original scientific paper
Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer
Physical review B: Condensed matter and materials physics, 86 (2012), 16; 165419. https://doi.org/10.1103/PhysRevB.86.165419
Despoja, Vito; Dekanić, Krešimir; Šunjić, Marijan; Marušić, Leonardo

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Despoja, V., Dekanić, K., Šunjić, M. & Marušić, L. (2012). Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer. Physical review B: Condensed matter and materials physics, 86. (16). doi: 10.1103/PhysRevB.86.165419

Despoja, Vito, et al. "Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer." Physical review B: Condensed matter and materials physics, vol. 86, no. 16, 2012. https://doi.org/10.1103/PhysRevB.86.165419

Despoja, Vito, Krešimir Dekanić, Marijan Šunjić and Leonardo Marušić. "Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer." Physical review B: Condensed matter and materials physics 86, no. 16 (2012). https://doi.org/10.1103/PhysRevB.86.165419

Despoja, V., et al. (2012) 'Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer', Physical review B: Condensed matter and materials physics, 86(16). doi: 10.1103/PhysRevB.86.165419

Despoja V, Dekanić K, Šunjić M, Marušić L. Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer. Physical review B: Condensed matter and materials physics [Internet]. 2012 [cited 2024 November 23];86(16). doi: 10.1103/PhysRevB.86.165419

V. Despoja, K. Dekanić, M. Šunjić and L. Marušić, "Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer", Physical review B: Condensed matter and materials physics, vol. 86, no. 16, 2012. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:931364. [Accessed: 23 November 2024]

Metadata
Title (english)Ab initio study of energy loss and wake potential in the vicinity of a graphene monolayer
AuthorVito Despoja
AuthorKrešimir Dekanić
AuthorMarijan Šunjić
AuthorLeonardo Marušić
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
A propagator of the dynamically screened Coulomb interaction in the vicinity of a graphene monolayer is calculated using ground-state Kohn-Sham orbitals, and the imaginary part of this propagator is used to calculate the energy-loss rate of a static blinking point charge due to excitation of electronic modes in graphene. Energy loss calculated for all (Q,ω) modes gives intensities of electronic excitations, including plasmon dispersions in graphene, with low-energy two-dimensional (2D) and high-energy π1, π2, and π+σ plasmons. Plasmon energies are in good agreement with experimental results. This spectral analysis also enables us to study the contribution of each plasmon mode to the stopping power and potential induced by a point charge moving parallel to the graphene. We find the bow waves that in pristine graphene appear for higher velocities (v≥2vF) and predominantly originate from excitation of π plasmons. Doping induces extra features which appear for lower v≈vF velocities and predominantly originate from the excitation of 2D or Drude plasmons.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical review B: Condensed matter and materials physics
Numberingvol. 86, no. 16, 165419
p-ISSN1098-0121
e-ISSN1550-235X
DOIhttps://doi.org/10.1103/PhysRevB.86.165419
URN:NBNurn:nbn:hr:217:931364
Publication2012
Document URLhttp://link.aps.org/doi/10.1103/PhysRevB.86.165419
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2012) by the American Physical Society. Received 27 June 2012; published 11 October 2012.
Created on2019-11-21 11:55:49