▎ 摘 要
The magnetoconductivity proportional to B-2 with B the strength of applied magnetic field is calculated in monolayer graphene in a self-consistent Born approximation for scatterers with long-range potentialsuch as a Gaussian potential and a screened Coulomb potential. The results are used for obtaining the magnetoresistivity proportional to B-2 in the Hall-bar geometry together with the weak-field Hall conductivity proportional to B. The magnetoresistivity shows a distinct and sharp double-peak structure in the vicinity of zero energy.