Tunable magnetism in strained graphene with topological line defect

Kou, Liangzhi, Tang, Chun, Guo, Wanlin, & Chen, Changfeng (2011) Tunable magnetism in strained graphene with topological line defect. ACS Nano, 5(2), pp. 1012-1017.

View at publisher


We examine the magnetic properties of two-dimensional graphene with topological line defect using first-principles calculations and predict a weak ferromagnetic ground state with spin-polarized electrons localized along the extended line defect. Our results show that tensile strain along the zigzag direction can greatly enhance local magnetic moments and ferromagnetic stability of the system. In sharp contrast, tensile strain applied along the armchair direction quickly diminishes these magnetic moments. A detailed analysis reveals that this intriguing magnetism modulation by strain stems from the redistribution of spin-polarized electrons induced by local lattice distortion. It suggests a sensitive and effective way to control magnetic properties of graphene which is critical for its applications in nanoscale devices.

Impact and interest:

90 citations in Scopus
Search Google Scholar™
85 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 98226
Item Type: Journal Article
Refereed: Yes
Keywords: graphene, magnetism modulation, strain control, topological line defect
DOI: 10.1021/nn1024175
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 26 Aug 2016 05:17
Last Modified: 01 Sep 2016 00:34

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page