2001/06/07 by N. S. Averkiev, L. E. Golub, S. A. Tarasenko +1 · 1 citation
Physics and Astronomy · #Quantum and electron transport phenomena #Random lasers and scattering media #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.64.045405
18 pages, 4 figures. Accepted to Phys. Rev. B 64
arxiv created 2001/06/07 · openalex publication_date 2001/06/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The theory of weak localization is generalized for multilevel two-dimensional systems taking into account intersubband scattering. It is shown that weak intersubband scattering, which is negligible in classical transport, affects strongly the weak-localization correction to conductivity. The anomalous magnetoresistance is calculated in the whole range of classically low magnetic fields. This correction to conductivity is shown to depend strongly on the ratios of occupied level concentrations. It is demonstrated that at relatively low population of the excited subband, it is necessary to use the present theory because the high-field limit asymptotics is shown to be achieved only in classical magnetic fields.