Measurement of the electronic dephasing time via the weak localization effect in a narrow channel

Authors :: Katine, J. A.
Berry, M. J.
Westervelt, R. M.
Gossard, A. C.
Source :: Superlattices and Microstructures; September 1994, Vol. 16 Issue: 2 p211-211, 1p
Publication Year :: 1994
Abstract: We have utilized the the weak localization effect in a narrow channel to measure the phase coherence time (τφ) at temperatures between 0.42 K and 4.25 K for electrons in a two-dimensional electron gas formed in a GaAs/Al<SUB>x</SUB>Ga<SUB>1-x</SUB>As heterostructure. The measured values agree well with electron-electron scattering theory in a one-dimensional channel including both single particle and collective contributions. Copyright 1994, 1999 Academic Press

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