Journal article
First-principles study of the terahertz third-order nonlinear response of metallic armchair graphene nanoribbons
Physical review. B, Vol.93(23), 235430
03/18/2016
DOI: 10.1103/PhysRevB.93.235430
Abstract
Phys. Rev. B 93, 235430 (2016) We compute the terahertz third-order nonlinear conductance of metallic
armchair graphene nanoribbons using time-dependent perturbation theory.
Significant enhancement of the intrinsic third-order conductance over the
result for instrinsic 2D single-layer graphene is observed over a wide range of
temperatures. We also investigate the nonlinear response of extrinsic metallic
acGNR with |E_F|<<200 meV. We find that the third-order conductance exhibits a
strong Fermi level dependence at low temperatures. A third-order critical field
strength of between 1 and 5 kV/m is computed for the Kerr conductance as a
function of temperature. For the third-harmonic conductance, the minimum
critical field is computed to be about about 5 kV/m.
Details
- Title: Subtitle
- First-principles study of the terahertz third-order nonlinear response of metallic armchair graphene nanoribbons
- Creators
- Yichao Wang - University of IowaDavid R Andersen - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physical review. B, Vol.93(23), 235430
- DOI
- 10.1103/PhysRevB.93.235430
- ISSN
- 2469-9950
- eISSN
- 2469-9969
- Language
- English
- Date published
- 03/18/2016
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984197278402771
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