Abstract
The static polarization function is calculated in two-dimensional graphite and used for the calculation of the conductivity limited by charged-impurity scattering. The conductivity increases in proportion to the electron concentration and the mobility remains independent of the Fermi energy, in qualitative agreement with experiments. The screening increases in proportion to temperature at sufficiently high temperatures in contrast to the behavior in conventional two-dimensional systems, leading to the mobility increase proportional to the square of temperature.
Keywords
ImpurityGrapheneScatteringMaterials scienceCondensed matter physicsConductivityFermi energyElectronMonolayerElectrical resistivity and conductivityPolarization (electrochemistry)Fermi levelKubo formulaPhysicsOpticsNanotechnologyChemistry
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Publication Info
- Year
- 2006
- Type
- article
- Volume
- 75
- Issue
- 7
- Pages
- 074716-074716
- Citations
- 814
- Access
- Closed
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Cite This
Tsuneya Ando
(2006).
Screening Effect and Impurity Scattering in Monolayer Graphene.
Journal of the Physical Society of Japan
, 75
(7)
, 074716-074716.
https://doi.org/10.1143/jpsj.75.074716
Identifiers
- DOI
- 10.1143/jpsj.75.074716