THE TEMPERATURE-DEPENDENCE OF THE ELECTRON-MOBILITY IN SEMICONDUCTOR QUANTUM WIRES - FLUCTUATION EFFECTS

Electron transport in semiconductor quantum wires with parabolic confi ned potentials is considered. Non-Markovian Langevin-like equations ar e derived. A correspondence between the equations obtained and the bal ance equations for the non-equilibrium steady state is recognized. It is shown that at high temperature the electron mobility remains almost unchanged with increasing temperature. This is due to thermal fluctua tions which affect the energy-loss rate via electron-phonon scattering .