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Title: The effect of electron-electron interaction induced dephasing on electronic transport in graphene nanoribbons

Abstract

The effect of dephasing induced by electron-electron interaction on electronic transport in graphene nanoribbons is theoretically investigated. In the presence of disorder in graphene nanoribbons, wavefunction of electrons can set up standing waves along the channel and the conductance exponentially decreases with the ribbon's length. Employing the non-equilibrium Green's function formalism along with an accurate model for describing the dephasing induced by electron-electron interaction, we show that this kind of interaction prevents localization and transport of electrons remains in the diffusive regime where the conductance is inversely proportional to the ribbon's length.

Authors:
;  [1];  [1]
  1. School of Electrical and Computer Engineering, University of Tehran, P.O. Box 14395-515, Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22310852
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ELECTRIC CONDUCTIVITY; ELECTRON-ELECTRON INTERACTIONS; EQUILIBRIUM; GRAPHENE; GREEN FUNCTION; NANOSTRUCTURES; STANDING WAVES; WAVE FUNCTIONS

Citation Formats

Kahnoj, Sina Soleimani, Touski, Shoeib Babaee, Pourfath, Mahdi, and Institute for Microelectronics, TU Wien, Gusshausstrasse 27–29/E360, 1040 Vienna. The effect of electron-electron interaction induced dephasing on electronic transport in graphene nanoribbons. United States: N. p., 2014. Web. doi:10.1063/1.4894859.
Kahnoj, Sina Soleimani, Touski, Shoeib Babaee, Pourfath, Mahdi, & Institute for Microelectronics, TU Wien, Gusshausstrasse 27–29/E360, 1040 Vienna. The effect of electron-electron interaction induced dephasing on electronic transport in graphene nanoribbons. United States. https://doi.org/10.1063/1.4894859
Kahnoj, Sina Soleimani, Touski, Shoeib Babaee, Pourfath, Mahdi, and Institute for Microelectronics, TU Wien, Gusshausstrasse 27–29/E360, 1040 Vienna. Mon . "The effect of electron-electron interaction induced dephasing on electronic transport in graphene nanoribbons". United States. https://doi.org/10.1063/1.4894859.
@article{osti_22310852,
title = {The effect of electron-electron interaction induced dephasing on electronic transport in graphene nanoribbons},
author = {Kahnoj, Sina Soleimani and Touski, Shoeib Babaee and Pourfath, Mahdi and Institute for Microelectronics, TU Wien, Gusshausstrasse 27–29/E360, 1040 Vienna},
abstractNote = {The effect of dephasing induced by electron-electron interaction on electronic transport in graphene nanoribbons is theoretically investigated. In the presence of disorder in graphene nanoribbons, wavefunction of electrons can set up standing waves along the channel and the conductance exponentially decreases with the ribbon's length. Employing the non-equilibrium Green's function formalism along with an accurate model for describing the dephasing induced by electron-electron interaction, we show that this kind of interaction prevents localization and transport of electrons remains in the diffusive regime where the conductance is inversely proportional to the ribbon's length.},
doi = {10.1063/1.4894859},
url = {https://www.osti.gov/biblio/22310852}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 10,
volume = 105,
place = {United States},
year = {2014},
month = {9}
}