Domain walls in gapped graphene

Details Domain walls in gapped graphene Domain walls in gapped graphene

2008-05-31

arxiv.org/abs/0806.0094v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pgs. revtex

Scientific paper

10.1103/PhysRevLett.101.087204

The electronic properties of a particular class of domain walls in gapped graphene are investigated. We show that they can support mid-gap states which are localized in the vicinity of the domain wall and propagate along its length. With a finite density of domain walls, these states can alter the electronic properties of gapped graphene significantly. If the mid-gap band is partially filled,the domain wall can behave like a one-dimensional metal embedded in a semi-conductor, and could potentially be used as a single-channel quantum wire.

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