General announcements

Messages from the Psi-k trustees and other topics of relevance to the Psi-k community, e.g. community-led software codes or databases…

Due to the large number of posts recently, there is currently a delay of several weeks between posts being submitted and the corresponding emails being distributed to all users. Please bear with us while we try to improve this. In the meantime – and until this notice is removed – it would assist us considerably if you could submit only important and/or urgent posts and thus help to reduce the size of the mail queue. Under no circumstances should you resend posts multiple times when you find the emails are not distributed immediately.

In light of the Russian military offensive in Ukraine, we request that announcements relating to events, jobs and other activities associated with institutions supported by the Russian and Belarusian states are not posted to the Psi-k forum.


Release of PERTURBO, a code for ab initio electr ... (No replies)

bmarco
4 years ago
bmarco 4 years ago

Dear Psi-K community:

We are excited to announce the first release of PERTURBO, a software package for ab initio calculations of electron-phonon interactions, charge transport, and ultrafast carrier dynamics in materials.

The current release can compute:

  1. Electron-phonon matrix elements on arbitrary Brillouin zone grids;
  2. Electron-phonon scattering rates, relaxation times, and mean free paths;
  3. Electrical conductivity, carrier mobility, and Seebeck coefficient using the relaxation-time approximation or the iterative solution of the Boltzmann transport equation (BTE);
  4. Nonequilibrium dynamics, such as simulating the cooling and equilibration of excited carriers via interactions with phonons, by time-stepping the time-dependent BTE.

The code supports calculations with or without spin-orbit coupling, using norm-conserving or ultrasoft pseudopotentials. Wannier interpolation is employed to speed up the calculations.

PERTURBO is efficient, highly parallelized (with MPI plus OpenMP), and carefully tested. Its workflows are intuitive and user friendly. We encourage you to visit the PERTURBO website, https://perturbo-code.github.io , and download the code and use it for your current project on electron-phonon interactions and carrier dynamics.

The paper describing PERTURBO is available on arXiv:
Jin-Jian Zhou, Jinsoo Park, I-Te Lu, Ivan Maliyov, Xiao Tong, Marco Bernardi
Perturbo: a software package for ab initio electron-phonon interactions, charge transport and ultrafast dynamics” 
https://arxiv.org/abs/2002.02045

Please do not hesitate to contact us if you need more information.

With kindest regards,
Marco Bernardi, on behalf of the PERTURBO team




Back to General announcements...

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Ab initio (from electronic structure) calculation of complex processes in materials