The longitudinal optical conductivity in bilayer graphene and other two-dimensional systems

Yang, CH; Ao, ZM; Wei, XF; Jiang, JJ

The longitudinal optical conductivity in bilayer graphene and other two-dimensional systems

Yang, CH Ao, ZM

Wei, XF Jiang, JJ

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Publication Type:: Journal Article
Citation:: Physica B: Condensed Matter, 2015, 457 pp. 92 - 95
Issue Date:: 2015-01-15

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Field	Value	Language
dc.contributor.author	Yang, CH	en_US
dc.contributor.author	Ao, ZM https://orcid.org/0000-0003-0333-3727	en_US
dc.contributor.author	Wei, XF	en_US
dc.contributor.author	Jiang, JJ	en_US
dc.date.issued	2015-01-15	en_US
dc.identifier.citation	Physica B: Condensed Matter, 2015, 457 pp. 92 - 95	en_US
dc.identifier.issn	0921-4526	en_US
dc.identifier.uri	http://hdl.handle.net/10453/41244
dc.description.abstract	© 2014 Elsevier B.V. All rights reserved. The longitudinal optical conductivity in bilayer graphene is calculated using the dielectric function by defining the density operator theoretically, while the effect of the broadening width determined by the scattering sources on the optical conductivity is also investigated. Some features, such as chirality, energy dispersion and density of state (DOS) in bilayer graphene, are similar to those in monolayer graphene and a traditional two-dimensional electron gas (2DEG). Therefore, in this paper, the bilayer graphene optical conductivity is compared with the results in these two systems. The analytical and numerical results show that the optical conductivity per graphene layer is almost a constant and close to e2/(4ℏ), which agrees with the experimental results.	en_US
dc.relation.ispartof	Physica B: Condensed Matter	en_US
dc.relation.isbasedon	10.1016/j.physb.2014.09.036	en_US
dc.subject.classification	General Physics	en_US
dc.title	The longitudinal optical conductivity in bilayer graphene and other two-dimensional systems	en_US
dc.type	Journal Article
utslib.citation.volume	457	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0206 Quantum Physics	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	457	en_US

Abstract:

© 2014 Elsevier B.V. All rights reserved. The longitudinal optical conductivity in bilayer graphene is calculated using the dielectric function by defining the density operator theoretically, while the effect of the broadening width determined by the scattering sources on the optical conductivity is also investigated. Some features, such as chirality, energy dispersion and density of state (DOS) in bilayer graphene, are similar to those in monolayer graphene and a traditional two-dimensional electron gas (2DEG). Therefore, in this paper, the bilayer graphene optical conductivity is compared with the results in these two systems. The analytical and numerical results show that the optical conductivity per graphene layer is almost a constant and close to e2/(4ℏ), which agrees with the experimental results.

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http://hdl.handle.net/10453/41244