Physica E, ( ISI ), Volume (67), Year (2014-11) , Pages (54-58)

Title : ( Electronic properties of α -graphyne nanoribbons under the electric field effect )

Authors: hamed jafarzadeh , Mahmood Rezaee Roknabadi , Nasser Shahtahmassebi , Mohammad Behdani ,

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In this paper, we investigate the electronic structure of both armchair and zigzag α -graphyne nanor- ibbons. We use a simple tight binding model to study the variation of the electronic band gap in α -graphyne nanoribbon. The effects of ribbon width, transverse electric field and edge shape on the electronic structure have been studied. Our results show that in the absence of external electric field,zigzag α-graphyne nanoribbons are semimetal and the electronic band gap in armchair α-graphyne nanoribbon oscillates and decreases with ribbon's width. By applying an external electric field the band gap in the electronic structure of zigzag α-graphyne nanoribbon opens and oscillates with ribbon width and electric field magnitude. Also the band gap of armchair α-graphyne nanoribbon decreases in low electric field, but it has an oscillatory growth behavior for high strength of external electric field.

Keywords

, Graphyne, Tight binding, Nanoribbon, Electronic structure, Graphyne, Tight binding, Nanoribbon.Electronic structure, Band
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@article{paperid:1046766,
author = {Jafarzadeh, Hamed and Rezaee Roknabadi, Mahmood and Shahtahmassebi, Nasser and Behdani, Mohammad},
title = {Electronic properties of α -graphyne nanoribbons under the electric field effect},
journal = {Physica E},
year = {2014},
volume = {67},
month = {November},
issn = {1386-9477},
pages = {54--58},
numpages = {4},
keywords = {Graphyne; Tight binding; Nanoribbon; Electronic structure; Graphyne; Tight binding;Nanoribbon.Electronic structure;Band gap},
}

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%0 Journal Article
%T Electronic properties of α -graphyne nanoribbons under the electric field effect
%A Jafarzadeh, Hamed
%A Rezaee Roknabadi, Mahmood
%A Shahtahmassebi, Nasser
%A Behdani, Mohammad
%J Physica E
%@ 1386-9477
%D 2014

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