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