Semiclassical versus quantum magnetotransport in two-dimensional disordered systems

A discussion is presented on how one should combine the semiclassical aspects of magnetotransport in high-mobility two-dimensional electron systems with weak localization and interaction corrections. It is shown (see ibid., vol.5, p.933 (1990)) that certain expressions recently invoked by Taboryski and Lindelof to explain their data are inconsistent with the underlying physics. A corrected analysis clearly highlights some important and unexplained differences between theory and experiment. Several possible solutions are listed.