DocumentCode :
1604242
Title :
Octagonal defect lines in graphene structures
Author :
Jaskolski, W. ; Pelc, Marta ; Chico, Leonor ; Ayuela, Andres
Author_Institution :
Inst. of Phys., Nicolaus Copernicus Univ., Torun, Poland
fYear :
2012
Firstpage :
1
Lastpage :
5
Abstract :
We study graphene nanoribbons and carbon nanotubes containing defect lines built of octagonal rings. All the calculations are performed within the π-electron tight binding approximation, taking into account electron interaction effects by means of the Hubbard model. Octagonal defect lines are the source of state localization at Fermi energy and in some cases may lead to spontaneous magnetization. We show that the localization is due to the zigzag nature of the edges of defect lines.
Keywords :
carbon nanotubes; graphene; Fermi energy; Hubbard model; carbon nanotubes; electron interaction effects; graphene nanoribbons; graphene structures; octagonal defect lines; octagonal rings; spontaneous magnetization; state localization; tight binding approximation; Carbon;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nanotechnology (IEEE-NANO), 2012 12th IEEE Conference on
Conference_Location :
Birmingham
ISSN :
1944-9399
Print_ISBN :
978-1-4673-2198-3
Type :
conf
DOI :
10.1109/NANO.2012.6322188
Filename :
6322188
Link To Document :
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