We investigate the magnetoconductance of a two-band electron system and a model with effectivemass anisotropy by means of the method based on the exact electron eigenstates in a magnetic field proposed formerly by us to study a single-band, isotropic system. We show the universality of the results, the details of the model being absorbed in properly defined effective diffusion constants, cyclotron frequencies, and lifetimes.
Physical review. B, Condensed matter. New York. Vol. 47, n. 12 (Mar. 1993), p. 7572-7575