@Article{Verevkin_etal1996,
author="Verevkin, A. A.
and Ptitsina, N. G.
and Chulcova, G. M.
and Gol{\textquoteright}tsman, G. N.
and Gershenzon, E. M.
and Yngvesson, K. S.",
title="Direct measurements of energy relaxation time of electrons in AlGaAs/GaAs heterostructures under quasi-equilibrium conditions",
journal="Surface Science",
year="1996",
volume="361-362",
pages="569--573",
optkeywords="2DEG; AlGaAs/GaAs heterostructures",
abstract="For the first time, results are presented of a direct measurement of the energy relaxation time $\tau$$\epsilon$ of 2D electrons in an AlGaAs/GaAs heterojunction at T = 1 and 5--20 K. A weak temperature dependence of $\tau$$\epsilon$ for the T > 4K range and a linear temperature dependence of the reciprocal of $\tau$$\epsilon$ for T < 4K have been observed. The linear dependence $\tau$$\epsilon$-1 ≈ T in the Bloch-Gruneisen regime is direct evidence of the predominance of the piezo-electric mechanism of electron-phonon interaction in non-elastic electron scattering processes. The values of $\tau$$\epsilon$ in this regime are in very good agreement with the results of the Karpus theory. At higher temperatures, where the deformation-potential scattering becomes noticeable, a substantial disagreement between the experimental data and the theoretical results is observed.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1609), last updated on Wed, 26 May 2021 11:17:39 -0500",
issn="0039-6028",
doi="10.1016/0039-6028(96)00471-2",
opturl="https://linkinghub.elsevier.com/retrieve/pii/0039602896004712",
opturl="https://doi.org/10.1016/0039-6028(96)00471-2"
}