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Noise suppression due to long-range Coulomb interaction: crossover between diffusive and ballistic transport regimes

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, , Citation T González et al 1997 Semicond. Sci. Technol. 12 1053 DOI 10.1088/0268-1242/12/8/001

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1 Departamento de Física Aplicada, Universidad de Salamanca, Plaza de la Merced s/n, E-37008 Salamanca, Spain

2 Istituto Nazionale di Fisica della Materia, Dipartimento di Scienza dei Materiali, Università di Lecce, Via Arnesano, 73100 Lecce, Italy

3 Departament de Física Fonamental, Universitat de Barcelona, Av Diagonal 647, E-08028 Barcelona, Spain

Dates

  1. Received 16 April 1997
  2. Accepted 4 June 1997

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0268-1242/12/8/1053

Abstract

We present a Monte Carlo analysis of shot-noise suppression due to long-range Coulomb interaction in semiconductor samples under a crossover between diffusive and ballistic transport regimes. By varying the mean time between collisions we find that the strong suppression observed under the ballistic regime persists under quasi-ballistic conditions, before being washed out when a complete diffusive regime is reached.

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10.1088/0268-1242/12/8/001