For a discussion of the temperature

For a discussion of the temperature dependence of the magnetoresistance anomalies, we refer to Ref.360. Here it suffices to note that the experiments discussed were carried out at temperatures around 1K, for which we expect the zero-temperature semiclassical calculation to be appropriate. At lower temperatures the effects of quantum mechanical phase coherence that have been neglected will become more important. At higher temperatures the thermal average smears out the magnetoresistance anomalies and eventually inelastic scattering causes a transition to the diffusive transport regime in which the resistances have their normal B-dependence.