Next Article in Journal
Optimizing Re-planning Operation for Smart House Applying Solar Radiation Forecasting
Next Article in Special Issue
Graphene Thermal Properties: Applications in Thermal Management and Energy Storage
Previous Article in Journal
Selection of a Visible-Light vs. Thermal Infrared Sensor in Dynamic Environments Based on Confidence Measures
Previous Article in Special Issue
Electrical Properties of Graphene for Interconnect Applications
Appl. Sci. 2014, 4(3), 351-365; doi:10.3390/app4030351
Article

Heterospin Junctions in Zigzag-Edged Graphene Nanoribbons

1
, 2
 and 2,*
Received: 16 June 2014; in revised form: 25 July 2014 / Accepted: 28 July 2014 / Published: 18 August 2014
(This article belongs to the Special Issue Towards Applications of Graphene)
Download PDF [3296 KB, uploaded 18 August 2014]
Abstract: We propose a graphene nanoribbon-based heterojunction, where a defect-free interface separates two zigzag graphene nanoribbons prepared in opposite antiferromagnetic spin configurations. This heterospin junction is found to allow the redirecting of low-energy electrons from one edge to the other. The basic scattering mechanisms and their relation to the system’s geometry are investigated through a combination of Landauer–Green’s function and the S-matrix and eigen-channel methods within a tight-binding + Hubbard model validated with density functional theory. The findings demonstrate the possibility of using zigzag-edged graphene nanoribbons (zGNRs) in complex networks where current can be transmitted across the entire system, instead of following the shortest paths along connected edges belonging to the same sub-lattice.
Keywords: graphene nanoribbons; edge states; quantum transport; Green’s functions graphene nanoribbons; edge states; quantum transport; Green’s functions
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Girão, E.C.; Liang, L.; Meunier, V. Heterospin Junctions in Zigzag-Edged Graphene Nanoribbons. Appl. Sci. 2014, 4, 351-365.

AMA Style

Girão EC, Liang L, Meunier V. Heterospin Junctions in Zigzag-Edged Graphene Nanoribbons. Applied Sciences. 2014; 4(3):351-365.

Chicago/Turabian Style

Girão, Eduardo C.; Liang, Liangbo; Meunier, Vincent. 2014. "Heterospin Junctions in Zigzag-Edged Graphene Nanoribbons." Appl. Sci. 4, no. 3: 351-365.


Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert