The spin-orbit interaction enhanced terahertz absorption in graphene around the K point

Wright, AR; Wang, GX; Xu, W; Zeng, Z; Zhang, C

The spin-orbit interaction enhanced terahertz absorption in graphene around the K point

Wright, AR Wang, GX

Xu, W Zeng, Z Zhang, C

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Publication Type:: Journal Article
Citation:: Microelectronics Journal, 2009, 40 (4-5), pp. 857 - 859
Issue Date:: 2009-04-01

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Field	Value	Language
dc.contributor.author	Wright, AR	en_US
dc.contributor.author	Wang, GX https://orcid.org/0000-0003-4295-8578	en_US
dc.contributor.author	Xu, W	en_US
dc.contributor.author	Zeng, Z	en_US
dc.contributor.author	Zhang, C	en_US
dc.date.issued	2009-04-01	en_US
dc.identifier.citation	Microelectronics Journal, 2009, 40 (4-5), pp. 857 - 859	en_US
dc.identifier.issn	0026-2692	en_US
dc.identifier.uri	http://hdl.handle.net/10453/13544
dc.description.abstract	We present a quantitative analysis on the effect of the spin-orbit interaction in the optical absorption of π-electrons in graphene. It has been shown that the optical absorption amplitude of graphene around the K point in the Brillouin zone has a node in the two-dimensional Brillouin zone of honeycomb lattice. We calculated the k-dependent absorption matrix by taking into account the finite spin-orbit interaction in graphene. It was found that the spin-orbit interaction lifts the nodes in the absorption matrix. Furthermore, in the terahertz frequency regime, the spin-orbit interaction can significantly enhance the optical absorption in graphene, by up to 100%. Crown Copyright © 2008.	en_US
dc.relation.ispartof	Microelectronics Journal	en_US
dc.relation.isbasedon	10.1016/j.mejo.2008.11.019	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	The spin-orbit interaction enhanced terahertz absorption in graphene around the K point	en_US
dc.type	Journal Article
utslib.citation.volume	4-5	en_US
utslib.citation.volume	40	en_US
utslib.for	0906 Electrical and Electronic Engineering	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.issue	4-5	en_US
pubs.publication-status	Published	en_US
pubs.volume	40	en_US

Abstract:

We present a quantitative analysis on the effect of the spin-orbit interaction in the optical absorption of π-electrons in graphene. It has been shown that the optical absorption amplitude of graphene around the K point in the Brillouin zone has a node in the two-dimensional Brillouin zone of honeycomb lattice. We calculated the k-dependent absorption matrix by taking into account the finite spin-orbit interaction in graphene. It was found that the spin-orbit interaction lifts the nodes in the absorption matrix. Furthermore, in the terahertz frequency regime, the spin-orbit interaction can significantly enhance the optical absorption in graphene, by up to 100%. Crown Copyright © 2008.

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http://hdl.handle.net/10453/13544