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Title: Electronic and magnetic properties of zigzag silicene nanoribbons with Stone–Wales defects

Abstract

The structural, electronic, and magnetic properties of zigzag silicene nanoribbons (ZSiNRs) with Stone–Wales (SW) defects were investigated using first-principles calculations. We found that two types of SW defects (named SW-Ι and SW-ΙΙ) exist in ZSiNRs. The SW defect was found to be the most stable at the edge of the ZSiNR, independently of the defect orientation, even more stable than it is in an infinite silicene sheet. In addition, the ZSiNRs can transition from semiconductor to metal or half-metal by modifying the SW defect location and concentration. For the same defect concentration, the band structures influenced by the SW-Ι defect are more distinct than those influenced by the SW-ΙΙ when the SW defect is at the edge. The present study suggests the possibility of tuning the electronic properties of ZSiNRs using the SW defects and might motivate their potential application in nanoelectronics and spintronics.

Authors:
 [1]; ; ; ; ;  [1]
  1. Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049 (China)
Publication Date:
OSTI Identifier:
22413099
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONCENTRATION RATIO; CRYSTAL DEFECTS; ELECTRONIC STRUCTURE; MAGNETIC PROPERTIES; NANOELECTRONICS; NANOSTRUCTURES; ORIENTATION; SEMICONDUCTOR MATERIALS; SHEETS; SILICENE

Citation Formats

Dong, Haixia, Institute of Solid State Physics, Shanxi Datong University, Datong 037009, Fang, Dangqi, Gong, Baihua, Zhang, Yang, Zhang, Erhu, and Zhang, Shengli. Electronic and magnetic properties of zigzag silicene nanoribbons with Stone–Wales defects. United States: N. p., 2015. Web. doi:10.1063/1.4907582.
Dong, Haixia, Institute of Solid State Physics, Shanxi Datong University, Datong 037009, Fang, Dangqi, Gong, Baihua, Zhang, Yang, Zhang, Erhu, & Zhang, Shengli. Electronic and magnetic properties of zigzag silicene nanoribbons with Stone–Wales defects. United States. doi:10.1063/1.4907582.
Dong, Haixia, Institute of Solid State Physics, Shanxi Datong University, Datong 037009, Fang, Dangqi, Gong, Baihua, Zhang, Yang, Zhang, Erhu, and Zhang, Shengli. Sat . "Electronic and magnetic properties of zigzag silicene nanoribbons with Stone–Wales defects". United States. doi:10.1063/1.4907582.
@article{osti_22413099,
title = {Electronic and magnetic properties of zigzag silicene nanoribbons with Stone–Wales defects},
author = {Dong, Haixia and Institute of Solid State Physics, Shanxi Datong University, Datong 037009 and Fang, Dangqi and Gong, Baihua and Zhang, Yang and Zhang, Erhu and Zhang, Shengli},
abstractNote = {The structural, electronic, and magnetic properties of zigzag silicene nanoribbons (ZSiNRs) with Stone–Wales (SW) defects were investigated using first-principles calculations. We found that two types of SW defects (named SW-Ι and SW-ΙΙ) exist in ZSiNRs. The SW defect was found to be the most stable at the edge of the ZSiNR, independently of the defect orientation, even more stable than it is in an infinite silicene sheet. In addition, the ZSiNRs can transition from semiconductor to metal or half-metal by modifying the SW defect location and concentration. For the same defect concentration, the band structures influenced by the SW-Ι defect are more distinct than those influenced by the SW-ΙΙ when the SW defect is at the edge. The present study suggests the possibility of tuning the electronic properties of ZSiNRs using the SW defects and might motivate their potential application in nanoelectronics and spintronics.},
doi = {10.1063/1.4907582},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 6,
volume = 117,
place = {United States},
year = {2015},
month = {2}
}