Abstract
A topological anomaly present at zero energy is shown to give rise to a peculiar and singular behavior of the dynamic and static conductivity in two-dimensional honeycomb lattices. A calculation in a self-consistent Born approximation reveals that this singular dependence prevails although being somewhat smoothed out even if level broadening effects are taken into account.
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Publication Info
- Year
- 2002
- Type
- article
- Volume
- 71
- Issue
- 5
- Pages
- 1318-1324
- Citations
- 448
- Access
- Closed
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Identifiers
- DOI
- 10.1143/jpsj.71.1318