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Band structures and transport properties of zigzag graphene nanoribbons with antidot arrays
- Source :
- Journal of physics. Condensed matter : an Institute of Physics journal. 22(31)
- Publication Year :
- 2011
-
Abstract
- We study the band and transport features of zigzag graphene nanoribbon with an antidot lattice. It is found that an antidot lattice could turn semi-metal graphene into a semiconductor. The size of the band gap can be tuned by the position of the antidots and the distance D between the two nearest antidots. For a finite superlattice with N antidots and a large D, a group of (N - 1) splitting resonant peaks and transmission-blockade regions appear alternately in the conductance spectrum. This indicates the formation of minibands and minigaps. In addition, Fano resonances can be observed when the antidots are localized near one edge of the nanoribbon. These features provide potential applications for graphene-based electronic and optoelectronic devices.
- Subjects :
- Materials science
Condensed matter physics
Band gap
Graphene
Superlattice
Fermi level
Fano resonance
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Condensed Matter Physics
law.invention
symbols.namesake
Zigzag
law
Condensed Matter::Superconductivity
symbols
General Materials Science
Physics::Chemical Physics
Electronic band structure
Graphene nanoribbons
Subjects
Details
- ISSN :
- 1361648X
- Volume :
- 22
- Issue :
- 31
- Database :
- OpenAIRE
- Journal :
- Journal of physics. Condensed matter : an Institute of Physics journal
- Accession number :
- edsair.doi.dedup.....b20cc7e54cb3f7ecfb11e330d9be6242