Quantum discreteness and fundamental 1/f noise in tunnel junctions, nano-composites and other many-electron systems

Yu. E. Kuzovlev; Yu. V. Medvedev; A. M. Grishin

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Quantum discreteness and fundamental 1/f noise in tunnel junctions, nano-composites and other many-electron systems

Yu. E. Kuzovlev·Yu. V. Medvedev·A. M. Grishin

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Abstract

It is shown, with citing tunnel junction as an example, that mutual interplay of electron quantum transfers in a conducting system can be the fast mechanism for generation fundamental low-frequency flicker conductance fluctuations (1/f noise) without composing Lorentzians. This effect is lost in a theory which neglects the actual discreteness of electron energy levels. The analytical estimates of fluctuations of tunnel conductance are obtained, and the strong 1/f-noise sensibility to the discreteness as observed in nano-composites is explained both qualitatively and quantitatively.

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Yu. E. Kuzovlev, Yu. V. Medvedev, A. M. Grishin. 2000-10-27. Quantum discreteness and fundamental 1/f noise in tunnel junctions, nano-composites and other many-electron systems. https://arxiv.org/abs/cond-mat/0010447

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