Title:
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The role of energy correlations on Coulomb suppression in ballistic conductors contacted to degenerate reservoirs
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Author:
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González, T.; Mateos, Javier; Pardo, D.; Gomila Lluch, Gabriel; Cantalapiedra, I. R.; Reggiani, L. (Lino), 1941-
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Other authors:
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Universitat de Barcelona |
Abstract:
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Coulomb suppression of shot noise in a ballistic diode connected to degenerate ideal contacts is analyzed in terms of the correlations taking place between current fluctuations due to carriers injected with different energies. By using Monte Carlo simulations we show that at low frequencies the origin of Coulomb suppression can be traced back to the negative correlations existing between electrons injected with an energy close to that of the potential barrier present in the diode active region and all other carriers injected with higher energies. Correlations between electrons with energy above the potential barrier with the rest of electrons are found to influence significantly the spectra at high frequency in the cutoff region. |
Subject(s):
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-Física de l'estat sòlid -Electrònica quàntica -Solid state physics -Quantum electronics |
Rights:
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(c) The American Physical Society, 2003
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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