  In the present study, the anisotropic resistivity of the monolayer graphene
has been obtained in semiclassical regime beyond the Dirac point approximation.
In particular, detailed investigations were made on the dependence of
conductivity on the Fermi energy. At low energies, in the vicinity of the Dirac
points, band energy of the monolayer graphene is isotropic at the Fermi level.
Meanwhile, at the intermediate Fermi energies anisotropic effects such as
trigonal warping is expected to be the origin of the anisotropic resistivity.
However, besides the band anisotropy there also exists an other source of
anisotropic resistivity which was introduced by scattering matrix. At high
energies it was shown that the band anisotropy is less effective than the
anisotropy generated by the scattering matrix. It was also shown that there
exist two distinct regimes of anisotropic resistivity corresponding the
trigonal warping and connected Fermi curve at intermediate and high energies
respectively.
