Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4904830
Title: Large magnetoresistance from long-range interface coupling in armchair graphene nanoribbon junctions
Authors: Li, Suchun
Son, Young-Woo
Quek, Su Ying 
Keywords: Science & Technology
Physical Sciences
Physics, Applied
Physics
TRANSPORT
GRAPHITE
ZIGZAG
Issue Date: 15-Dec-2014
Publisher: American Institute of Physics
Citation: Li, Suchun, Son, Young-Woo, Quek, Su Ying (2014-12-15). Large magnetoresistance from long-range interface coupling in armchair graphene nanoribbon junctions. APPLIED PHYSICS LETTERS 105 (24). ScholarBank@NUS Repository. https://doi.org/10.1063/1.4904830
Abstract: © 2014 AIP Publishing LLC. In recent years, bottom-up synthesis procedures have achieved significant advancements in atomically controlled growth of several-nanometer-long graphene nanoribbons with armchairshaped edges (AGNRs). This greatly encourages us to explore the potential of such well-defined AGNRs in electronics and spintronics. Here, we propose an AGNR based spin valve architecture that induces a large magnetoresistance up to 900%. We find that, when an AGNR is connected perpendicularly to zigzag-shaped edges, the AGNR allows for long-range extension of the otherwise localized edge state. The huge magnetoresistance is a direct consequence of the coupling of two such extended states from both ends of the AGNR, which forms a perfect transmission channel. By tuning the coupling between these two spin-polarized states with a magnetic field, the channel can be destroyed, leading to an abrupt drop in electron transmission.
Source Title: APPLIED PHYSICS LETTERS
URI: https://scholarbank.nus.edu.sg/handle/10635/170925
ISSN: 00036951
10773118
DOI: 10.1063/1.4904830
Appears in Collections:Elements
Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
1410.3567v1.pdf908.4 kBAdobe PDF

OPEN

Post-printView/Download

SCOPUSTM   
Citations

1
checked on Apr 18, 2021

Page view(s)

69
checked on Apr 16, 2021

Download(s)

2
checked on Apr 16, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.