Effect of Vacancies on Electronic and Magnetic Properties of Hydrogen Passivated Graphene Nanoribbons

• Authors: S. Haffad , L. Benchallal , L. Lamiri , F. Boubenider , H. Zitoune , B. Kahouadji , M. Samah
• Languages of publication: EN

Abstracts

EN

Using first-principles calculations we have demonstrated that electronic and magnetic properties of armchair graphene nanoribbons are modified by introducing vacancies defects. The equilibrium geometries, electronic, charge spin density distributions, electronic band structures, and magnetic moments were examined in the presence of vacancies. We have found that introducing vacancies into armchair graphene nanoribbons changes the spatial distribution of neighbor atoms, particularly those located around the vacancies. Our calculations showed that the vacancies have significant effect on the magnetization of armchair graphene nanoribbons. Magnetic moment values and electronic behavior in different configurations depend on the number of vacancies. These results suggest that vacancy defects can be used to modify the electronic and the magnetic properties of armchair graphene nanoribbons.

Keywords

EN

DFT; vacancies; AGNR; magnetic; passivated; electronic; charge transfer; band structure

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 5
• Pages: 1307-1313

Dates

published

2018-05

received

2017-12-20

(unknown)

2018-03-26

Contributors

author

S. Haffad

• Université A/Mira, Bejaia, Algeria

author

L. Benchallal

• Université A/Mira, Bejaia, Algeria

author

L. Lamiri

• Université A/Mira, Bejaia, Algeria

author

F. Boubenider

• Université Houari Boumediene, Laboratoire de physique des matériaux, Alger, Algeria

author

H. Zitoune

• Université Mohand Oulhadj, Bouira, Algeria

author

B. Kahouadji

• Université A/Mira, Bejaia, Algeria

author

M. Samah

• Université A/Mira, Bejaia, Algeria

Identifiers

DOI

10.12693/APhysPolA.133.1307