Two-dimensional electron liquid with disorder in a weak magnetic field
We present the effective theory for low energy dynamics of a two-dimensional interacting electrons in the presence of a weak short-range disorder and a weak perpendicular magnetic field, the filling factor $\nu \gg 1$. We investigate the exchange enhancement of the $g$-factor, the effective mass and the decay rate of the simplest spin wave excitations at $\nu = 2 N + 1$. We obtain the enhancement of the field-induced gap in the tunneling density of states and dependence of the tunneling conductivity on the applied bias.
Soviet Journal of Experimental and Theoretical Physics
- Pub Date:
- July 2002
- Mesoscopic Systems and Quantum Hall Effect
- 17 pages, no figures