IS THE REGIME WITH SHOT NOISE SUPPRESSION BY A FACTOR 1/3 ACHIEVABLE IN SEMICONDUCTOR DEVICES WITH MESOSCOPIC DIMENSIONS?

@article{Marconcini2012ISTR,
  title={IS THE REGIME WITH SHOT NOISE SUPPRESSION BY A FACTOR 1/3 ACHIEVABLE IN SEMICONDUCTOR DEVICES WITH MESOSCOPIC DIMENSIONS?},
  author={Paolo Marconcini and Massimo Macucci and Demetrio Logoteta and Massimo Totaro},
  journal={Fluctuation and Noise Letters},
  year={2012},
  volume={11},
  pages={1240012}
}
We discuss the possibility of diffusive conduction and thus of suppression of shot noise by a factor 1/3 in mesoscopic semiconductor devices with two-dimensional and one-dimensional potential disorder, for which existing experimental data do not provide a conclusive result. On the basis of our numerical analysis, we conclude that it is quite difficult to achieve diffusive transport over a reasonably wide parameter range, unless the device dimensions are increased up to the macroscopic scale… Expand

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Effect of potential disorder on shot noise suppression in nanoscale devices
  • P. Marconcini
  • Materials Science, Computer Science
  • 2013 IEEE/ACM International Symposium on Nanoscale Architectures (NANOARCH)
  • 2013
TLDR
It is shown that only in very particular conditions the diffusive noise regime is reached, while in more general cases only a gradual increase of shot noise toward the full shot noise behavior of strongly localized systems is observed as the disorder increases. Expand
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