Abstract
Warm-electron transport is studied for a two-dimensional electron gas coupled to LO phonons. The authors found that the mobility can be expanded as mu (F)/ mu 0=(1+ gamma mod F mod + beta F2) with F the electric field. The warm-electron transport coefficients, gamma and beta , are calculated within: (1) the diffusion-to-streaming transition model, (2) the Monte Carlo simulation method and (3) the momentum-balance equation. For a non-degenerate electron gas they found gamma >0 and beta <0.
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