MOBILITY OF ELECTRONS IN A QUASI-ONE-DIMENSIONAL CONDUCTING CHANNEL ON THE LIQUID-HELIUM SURFACE IN THE PRESENCE OF A MAGNETIC-FIELD

The influence of the transverse magnetic field on the electron mobilit y in a quasi-one-dimensional channel along the liquid-helium surface i s investigated. The mobility calculations are carried out by using the Boltzmann kinetic equation and the criteria for the validity of this approach, which are different from those for two-dimensional systems, are established. Two different limiting regimes corresponding to diffe rent roles of the electron-electron interaction in the quasi-one-dimen sional electron system are considered. The mobility is shown to be a d ecreasing function of the magnetic field. It is shown that the tempera ture dependence of the mobility in the presence of the magnetic field, as in the case of zero field, is a nonmonotonic function. (C) 1997 Am erican Institute of Physics.