Title:
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Self-consistent theory of current and voltage noise in multimode ballistic conductors
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Author:
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Bulashenko, Oleg; Rubí Capaceti, José Miguel
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Other authors:
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Universitat de Barcelona |
Abstract:
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Electron transport in a self-consistent potential along a ballistic two-terminal conductor has been investigated. We have derived general formulas which describe the nonlinear current-voltage characteristics, differential conductance, and low-frequency current and voltage noise assuming an arbitrary distribution function and correlation properties of injected electrons. The analytical results have been obtained for a wide range of biases: from equilibrium to high values beyond the linear-response regime. The particular case of a three-dimensional Fermi-Dirac injection has been analyzed. We show that the Coulomb correlations are manifested in the negative excess voltage noise, i.e., the voltage fluctuations under high-field transport conditions can be less than in equilibrium. |
Subject(s):
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-Estructura electrònica -Superfícies (Física) -Propietats elèctriques -Electronic structure -Surfaces (Physics) -Electric properties |
Rights:
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(c) The American Physical Society, 2002
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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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