Inelastic Quantum Magnetotransport in a Highly Correlated Two-Dimensional Electron Liquid

Abstract

We present new low temperature magnetoconductivity $({\ensuremath{\sigma}}_{\mathrm{xx}})$ measurements for the two-dimensional electron system on a liquid helium surface and the theoretical concept of the inelastic quantum magnetotransport that explains the data. It is shown that predictions for ${\ensuremath{\sigma}}_{\mathrm{xx}}$ made in the elastic approximation are valid only within a limited temperature range which narrows with the magnetic field increase. The temperature and magnetic field dependencies of ${\ensuremath{\sigma}}_{\mathrm{xx}}$ observed can be perfectly described as the interplay of the inelastic and many-electron effects.