Universality of the 1/3 shot-noise suppression factor in nondegenerate diffusive conductors

Abstract

Shot-noise suppression is investigated in nondegenerate diffusive conductors by means of an ensemble Monte Carlo simulator. The universal 1/3 suppression value is obtained when transport occurs under elastic collision regime provided the following conditions are satisfied: (i) The applied voltage is much larger than the thermal value; (ii) the length of the device is much longer than both the elastic mean free path and the Debye length. By fully suppressing carrier-number fluctuations, long range Coulomb interaction is essential to obtain the 1/3 value in the low-frequency limit.

arXiv commentRevTex, 4 pages, 4 figures

References in corpus (2)

• Effect of long-range Coulomb interaction on shot-noise suppression in ballistic transport
• Electron-number statistics and shot-noise suppression by Coulomb correlation in nondegenerate ballistic transport

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