▎ 摘　　要

The diamagnetic susceptibility of monolayer graphene with band gap is calculated in nonuniform magnetic field. The gap-opening does not influence the essential feature that graphene does not respond to magnetic field with wavelength longer than the Fermi wavelength, while it tends to reduce the susceptibility in the short-wavelength region. Effects of disorder are studied within a self-consistent Born approximation, showing considerable reduction in the gap in the density of states and that they tend to affect the susceptibility in the long-wavelength region.