Low-temperature dephasing in disordered conductors: experimental aspects

Abstract

What is the lowest temperature to which one can trace the growth of the dephasing time in low-dimensional conductors? I consider the fundamental limitation, the crossover from weak to strong localization, as well as several experimental reasons for frequently observed saturation of the dephasing time (hot-electron effects, dephasing by external noise). Recent progress in our understanding of the electron-phonon interaction in disordered conductors is also briefly discussed.

10 pages, 5 figures, uses annalen.cls, presented at Localization-99, to be published in Annalen der Physik

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