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Kim, Kwang S.
Center for Superfunctional Materials (CSM)
Research Interests
  • Theoretical/experimental nanosciences, molecular electronics spectroscopy, energy materials

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Drift-induced modifications to the dynamical polarization of graphene

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Title
Drift-induced modifications to the dynamical polarization of graphene
Author
Sabbaghi, MohsenLee, Hyun-WooStauber, TobiasKim, Kwang S.
Issue Date
2015-11
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.92, no.19, pp.195429-1 - 195429-10
Abstract
The response function of graphene is calculated in the presence of a constant current across the sample. For small drift velocities and finite chemical potential, analytic expressions are obtained and consequences on the plasmonic excitations are discussed. For general drift velocities and zero chemical potential, numerical results are presented and a plasmon gain region is identified that is related to interband transitions. © 2015 American Physical Society
URI
https://scholarworks.unist.ac.kr/handle/201301/18001
URL
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.195429
DOI
10.1103/PhysRevB.92.195429
ISSN
2469-9950
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CHM_Journal Papers
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