Theoretical 2D Raman band of strained graphene

Valentin N. Popov, P. Lambin

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

We study the 2D Raman band of in-plane uniaxially strained graphene within a nonorthogonal tight-binding model. At nonzero strain, the obtained 2D band splits into two subbands at strain angles 0 and 30 or into three subbands at intermediate angles. The evolution of the 2D subbands is calculated systematically in the range of the accessible strains from -1% to 3% and for the commonly used laser photon energy from 1.5 to 3.0 eV. The strain rate and dispersion rate of the 2D subbands are derived and tabulated. In particular, these two quantities show large variations up to 50%. The results on the 2D subbands can be used for detecting and monitoring strain in graphene for nanoelectronics applications.
langue originaleAnglais
Numéro d'article155425
Nombre de pages7
journalPhysical Review B - Condensed Matter and Materials Physics
Volume87
Numéro de publication15
Les DOIs
étatPublié - 19 avr. 2013

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graphene
strain rate
Nanoelectronics
photons
lasers
Strain rate
Photons
energy
Lasers
Monitoring

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Theoretical 2D Raman band of strained graphene. / Popov, Valentin N.; Lambin, P.

Dans: Physical Review B - Condensed Matter and Materials Physics, Vol 87, Numéro 15, 155425, 19.04.2013.

Résultats de recherche: Contribution à un journal/une revueArticle

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AU - Lambin, P.

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