Influence of Landau-level mixing on the charge-density-wave state of a two-dimensional electron gas in a strong magnetic field

The influence of Landau-level mixing on the charge-density-wave (CDW) state of the two-dimensional electron gas in a strong magnetic field has been investigated. We find that it is necessary to calculate the mixing self-consistently. The results show that little change in the ground-state energy results even when the interaction energy becomes stronger than the Landau-level separation but that there is a substantial change of the charge-density variation, especially for electron CDW states.