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VOLUME 55 (1992) | ISSUE 4 | PAGE 233
Suppression of hot-electron fluctuations in semiconductors under size-effect conditions
A theory is derived for the fluctuations of hot electrons in a spatially inhomogeneous semiconductor plasma under conditions of a size effect over the energy relaxation length Le of the hot electrons. The field dependence of the spectral density of the fluctuations in the electron temperature and that of the current are calculated. The fluctuation spectrum depends on the sample thickness 2d. It has several nontrivial features. At 2d<LE, fluctuations at frequencies ω r~1 are suppressed.