Current Applied Physics, volume 15, issue 6, pages 691-697

Ab-initio calculation of optical properties of AA-stacked bilayer graphene with tunable layer separation

Publication typeJournal Article
Publication date2015-06-01
Quartile SCImago
Q2
Quartile WOS
Q3
Impact factor2.4
ISSN15671739
General Physics and Astronomy
General Materials Science
Abstract
Density functional theory based calculations revealed that optical properties of AA-stacked bilayer graphene are anisotropic and highly sensitive to the interlayer separation. In the long wave length limit of electromagnetic radiation, the frequency dependent response of complex dielectric function becomes vanishingly small beyond the optical frequency of 25.0 eV. Besides, static dielectric constant shows a saturation behaviour for parallel polarization of electric field vector when interlayer spacing is greater than 2.75 A. As a consequence, an appropriate modification of effective fine structure constant is observed as a function of layer separation. Moreover, the bilayer systems are highly transparent in the optical frequency range of 7.0–10.0 eV. The electron energy loss function exhibits two different in-plane collective (plasmon) excitations and a single out of plane plasmon excitation. The spectral nature of different frequency dependent optical properties is observed to be very similar to that of the monolayer pristine graphene apart from their exact numerical values.

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Nath P., Sanyal D., Jana D. Ab-initio calculation of optical properties of AA-stacked bilayer graphene with tunable layer separation // Current Applied Physics. 2015. Vol. 15. No. 6. pp. 691-697.
GOST all authors (up to 50) Copy
Nath P., Sanyal D., Jana D. Ab-initio calculation of optical properties of AA-stacked bilayer graphene with tunable layer separation // Current Applied Physics. 2015. Vol. 15. No. 6. pp. 691-697.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.cap.2015.03.011
UR - https://doi.org/10.1016%2Fj.cap.2015.03.011
TI - Ab-initio calculation of optical properties of AA-stacked bilayer graphene with tunable layer separation
T2 - Current Applied Physics
AU - Nath, Palash
AU - Sanyal, Dirtha
AU - Jana, Debnarayan
PY - 2015
DA - 2015/06/01 00:00:00
PB - Elsevier
SP - 691-697
IS - 6
VL - 15
SN - 1567-1739
ER -
BibTex |
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BibTex Copy
@article{2015_Nath,
author = {Palash Nath and Dirtha Sanyal and Debnarayan Jana},
title = {Ab-initio calculation of optical properties of AA-stacked bilayer graphene with tunable layer separation},
journal = {Current Applied Physics},
year = {2015},
volume = {15},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016%2Fj.cap.2015.03.011},
number = {6},
pages = {691--697},
doi = {10.1016/j.cap.2015.03.011}
}
MLA
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MLA Copy
Nath, Palash, et al. “Ab-initio calculation of optical properties of AA-stacked bilayer graphene with tunable layer separation.” Current Applied Physics, vol. 15, no. 6, Jun. 2015, pp. 691-697. https://doi.org/10.1016%2Fj.cap.2015.03.011.
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