Applicability of the EPW code for 2D and 1D nanostructures

General discussion around the EPW software

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PasanH
Posts: 2
Joined: Sat Dec 04, 2021 1:41 am
Affiliation: Student

Applicability of the EPW code for 2D and 1D nanostructures

Post by PasanH »

Dear all, I am a new user looking to use the EPW code. I work with 2D and 1D Si nanostructures and have the following two concerns.

1. Is the EPW tool capable of evaluating transport properties in 2D and 1D semiconductor nanostructures?
2. Can EPW evaluate the complete relaxation time of electrons (All scattering terms without being limited to electron-phonon scattering)?

Thank you in advance

sponce
Site Admin
Posts: 604
Joined: Wed Jan 13, 2016 7:25 pm
Affiliation: EPFL

Re: Applicability of the EPW code for 2D and 1D nanostructures

Post by sponce »

Dear PasanH,

Thank you for your interest in EPW and welcome !

At present EPW only officially support bulk 3D materials.
There is ongoing work on the 2D version of EPW, which should be release soon.
The 1D version is also ongoing but will likely take more time.

At present EPW only supports phonon-limited mobility (el-ph scattering).
There is ongoing work to add other scattering mechanisms to EPW.
However you can add other scattering mechanisms by hand using, for example, Matthiessen's rule.

Best,
Samuel
Prof. Samuel Poncé
Chercheur qualifié F.R.S.-FNRS / Professeur UCLouvain
Institute of Condensed Matter and Nanosciences
UCLouvain, Belgium
Web: https://www.samuelponce.com

PasanH
Posts: 2
Joined: Sat Dec 04, 2021 1:41 am
Affiliation: Student

Re: Applicability of the EPW code for 2D and 1D nanostructures

Post by PasanH »

Dear Samuel,

Sorry for the delay in replying. Thank you for the helpful information.

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