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Universality of the 1/3 shot-noise suppression factor in nondegenerate diffusive conductors
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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 greater 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.
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GONZÁLEZ, C., et al. Universality of the 1/3 shot-noise suppression factor in nondegenerate diffusive conductors. Physical Review Letters. 1998. Vol. 80, num. 13, pags. 2901-2904. ISSN 0031-9007. [consulted: 3 of August of 2026]. Available at: https://hdl.handle.net/2445/13181