Magnetoconductivity of Dirac fermions in graphene under charged impurity scatterings

Details Magnetoconductivity of Dirac fermions in graphene under charged impurity scatterings Magnetoconductivity of Dirac fermions in graphene under charged impurity scatterings

2009-04-12

arxiv.org/abs/0904.1866v1

New J. Phys. 11, 093026 (2009).

Physics

Condensed Matter

Strongly Correlated Electrons

13 pages, 9 figures

Scientific paper

10.1088/1367-2630/11/9/093026

On the basis of self-consistent Born approximation, we solve the Bethe-Salpeter matrix equations for Cooperon propagator of the Dirac fermions in graphene under the charged impurity scatterings and a weak external magnetic field. In the absence of the magnetic field, the quantum interference effect in the electric conductivity from the contribution of Cooperon propagator will be studied and possible weak localization in the system is discussed in terms of the sample length and temperature. The magnetoconductivity stemming from the quantum interference effect is calculated, and the obtained results are in good agreement with experimental measurements.

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