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Direct determination of the electron-electron mean free path in diffusive mesoscopic samples using shot noise

Y. Naveh
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Abstract

Using the 'drift-diffusion-Langevin' equation, we have recently shown that finite-frequency shot noise in diffusive mesoscopic conductors is very sensitive to the ratio $γ\equiv L/\lee$ between the sample length $L$ and the electron-electron mean free path $\lee$. In this work we present numerical calculations of the noise at arbitrary value of $γ$. If coupled with accurate noise measurements, the results presented here could serve as a new and independent way of determining $\lee$ in a given sample.

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Y. Naveh. 1998-12-12. Direct determination of the electron-electron mean free path in diffusive mesoscopic samples using shot noise. https://doi.org/10.1103/physrevb.58.r13387

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