Anomalous magneto-oscillations in two-dimensional systems

R. Winkler, S. J. Papadakis, E. P. De Poortere, M. Shayegan

Published 1999-09-14, updated 1999-10-01Version 2

The frequencies of Shubnikov-de Haas oscillations have long been used to measure the unequal population of spin-split two-dimensional subbands in inversion asymmetric systems. We report self-consistent numerical calculations and experimental results which indicate that these oscillations are not simply related to the zero-magnetic-field spin-subband densities.