TWO-DIMENSIONAL ELECTRON LIQUID WITH DISORDER IN A WEAK MAGNETIC FIELD
Burmistrov I.S.

Received: January 24, 2002

PACS: 73.43.-f, 73.20.Mf, 73.43.Jn

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We present the effective theory for the low-energy dynamics of two-dimensional interacting electrons in the presence of a weak short-range disorder and a weak perpendicular magnetic field, with the filling factor . We investigate the exchange enhancement of the g factor, the effective mass, and the decay rate of the simplest spin wave excitations at u=2N+1. We obtain the enhancement of the field-induced gap in the tunneling density of states and the dependence of the tunneling conductivity on the applied bias.