Talk:Mesoscopic physics

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Why a disambiguation text that does not point out to a real conflicting article? MaoGo (talk) 20:31, 26 November 2017 (UTC)[reply]

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Contribution to electronic transport in Mesoscopic physics (June 2025)

Hi Wikipedians,

We are a pair of students of physics degree. As an assignment we have to contribute to some articles related to the subject Nanomaterials physics, so we would like to add the following paragraphs about the electronic transport in mesoscopic systems. If you have any comment or suggestions, please let me know:

[...] In mesoscopic physics, materials are of intermediate size between the microscopic and macroscopic scales. As a result, the nature of electronic transport depends critically on the distance to be crossed by the carriers ( $L$ ) compared to the mean free path ( $L_{m}$ ) of the charge carriers.

In the diffusive case, where $L$ $\sim$ $L_{m}$ and carriers undergo multiple scattering events, transport is described by the semiclassical Boltzmann transport equation.

In contrast, when $L$ < $L_{m}$ , scattering becomes negligible and the system enters the ballistic transport, that works really different from diffusive transport. Here, electrons go through the material without collisions, preserving their energy and phase coherence. This is because we can consider electrons as waves whose energy does not change at any time. In this way, quantum mechanics can be used to describe how this transport is. [...] ^[1]

References

^ Datta, S. (1995). Electronic Transport in Mesoscopic Systems. Cambridge: Cambridge University Press.

[1] Datta, S. (1995). Electronic Transport in Mesoscopic Systems. Cambridge: Cambridge University Press.

[1]