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Electron localization properties in graphene.

D V Khveshchenko1

  • 1Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599, USA.

Physical Review Letters
|August 16, 2006
PubMed
Summary

We investigated electronic states in graphite monolayers, finding that standard localization effects are suppressed compared to other 2D materials. This explains recent experimental observations in graphite systems.

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Area of Science:

  • Condensed matter physics
  • Materials science

Background:

  • Monolayers of graphite exhibit unique electronic properties due to Dirac-like states.
  • Understanding localization phenomena is crucial for electronic device applications.

Purpose of the Study:

  • To investigate the localization properties of Dirac-like electronic states in graphite monolayers.
  • To analyze the conditions suppressing standard localization effects.

Main Methods:

  • Utilized a general disorder model.
  • Analyzed the logarithmic temperature-dependent conductivity correction.

Main Results:

  • Standard localization effects are strongly suppressed in graphite monolayers.
  • Suppression is observed in comparison to two-dimensional electron gas systems with parabolic dispersion.

Conclusions:

  • The findings align with recent experimental observations.
  • The study provides insights into the distinct electronic behavior of graphite monolayers.

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