Spin Susceptibility of the Two-Dimensional Electron Gas with Open Fermi Surface under Magnetic Field

Abstract
Under perpendicular magnetic field, the spin susceptibility of a noninteracting two-dimensional electron gas with open Fermi surface shows a novel behavior due to the orbital effect. It exhibits a series of peaks at wave vectors which obey a quantized nesting condition. When the field increases, each of these peaks becomes in turn the absolute maximum. Their magnitude diverges logarithmically at low temperature. We discuss some experimental consequences in actual anisotropic metals.