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Edge-states in graphene nanoribbons: a combined spectroscopy and transport study.

Authors :
Baringhaus J
Edler F
Tegenkamp C
Source :
Journal of physics. Condensed matter : an Institute of Physics journal [J Phys Condens Matter] 2013 Oct 02; Vol. 25 (39), pp. 392001. Date of Electronic Publication: 2013 Aug 14.
Publication Year :
2013

Abstract

Graphene structures of finite size are expected to reveal exceptional electronic and magnetic properties which are highly attractive for future nano-technological applications. In this study we have looked at the edge-states in graphene nanoribbons (GNR) grown by self-assembly on mesa structured SiC(0001) templates. By means of a 4-tip STM/SEM system, both local spectroscopy and lateral transport have been performed in situ on the same nanostructures. The conductance in these structures was found to be e(2)/h for temperatures up to 400 K. Scanning tunneling spectroscopy clearly reveals edge-localized states on these ribbons. The local bonding of these ribbons to their support turns out to be essential in order to preserve the metallicity of the edge-states.

Details

Language :
English
ISSN :
1361-648X
Volume :
25
Issue :
39
Database :
MEDLINE
Journal :
Journal of physics. Condensed matter : an Institute of Physics journal
Publication Type :
Academic Journal
Accession number :
23945317
Full Text :
https://doi.org/10.1088/0953-8984/25/39/392001