Abstract
We describe the weak localization correction to conductivity in ultra-thin graphene films, taking into account disorder scattering and the influence of trigonal warping of the Fermi surface. A possible manifestation of the chiral nature ofelectrons in the localization properties is hampered by trigonal warping, resulting in a suppression of the weak anti-localization effect in monolayer graphene and of weak localization in bilayer graphene. Intervalley scattering due to atomically sharp scatterers in a realistic graphene sheet or by edges in a narrow wire tends to restore weak localization resulting in negative magnetresistance in both materials.
Original language | English |
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Pages (from-to) | 39-54 |
Number of pages | 16 |
Journal | The European Physical Journal. Special Topics |
Volume | 148 |
Issue number | 1 |
DOIs | |
Publication status | Published - Sept 2007 |
Research Beacons, Institutes and Platforms
- National Graphene Institute