Electron-electron interactions in the conductivity of graphene

A. A. Kozikov; A. K. Savchenko; B. N. Narozhny; A. V. Shytov

doi:10.1103/PhysRevB.82.075424

Electron-electron interactions in the conductivity of graphene

A. A. Kozikov, A. K. Savchenko, B. N. Narozhny, A. V. Shytov

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of electron-electron interaction on the low-temperature conductivity of graphene is investigated experimentally. Unlike in other two-dimensional systems, the electron-electron interaction correction in graphene is sensitive to the details of disorder. A temperature regime of the interaction correction is identified where quantum interference is partially suppressed by intravalley scattering. We determine the value of the interaction parameter, F₀^σ ≃-0.1, and show that its small value is due to the chiral nature of interacting electrons.

Original language	English
Article number	075424
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.82.075424
Publication status	Published - 24 Aug 2010

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abstract = "The effect of electron-electron interaction on the low-temperature conductivity of graphene is investigated experimentally. Unlike in other two-dimensional systems, the electron-electron interaction correction in graphene is sensitive to the details of disorder. A temperature regime of the interaction correction is identified where quantum interference is partially suppressed by intravalley scattering. We determine the value of the interaction parameter, F0σ ≃-0.1, and show that its small value is due to the chiral nature of interacting electrons.",

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AU - Shytov, A. V.

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N2 - The effect of electron-electron interaction on the low-temperature conductivity of graphene is investigated experimentally. Unlike in other two-dimensional systems, the electron-electron interaction correction in graphene is sensitive to the details of disorder. A temperature regime of the interaction correction is identified where quantum interference is partially suppressed by intravalley scattering. We determine the value of the interaction parameter, F0σ ≃-0.1, and show that its small value is due to the chiral nature of interacting electrons.

AB - The effect of electron-electron interaction on the low-temperature conductivity of graphene is investigated experimentally. Unlike in other two-dimensional systems, the electron-electron interaction correction in graphene is sensitive to the details of disorder. A temperature regime of the interaction correction is identified where quantum interference is partially suppressed by intravalley scattering. We determine the value of the interaction parameter, F0σ ≃-0.1, and show that its small value is due to the chiral nature of interacting electrons.

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Electron-electron interactions in the conductivity of graphene

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