High-performance predictions of electron and phonon transport from first-principles

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• Jennifer Coulter, Harvard
• Monday 23 January 2023, 14:30-15:00
• Zoom link: https://zoom.us/j/92447982065?pwd=RkhaYkM5VTZPZ3pYSHptUXlRSkppQT09.

If you have a question about this talk, please contact Dr M. Simoncelli.

The theoretical prediction of electrical and thermal transport properties relies on an accurate description of the electrons, phonons, and their interactions. While first-principles methods based on density functional theory can often describe such material-specific quasiparticle properties, using this information to calculate transport coefficients is computationally demanding. To address this challenge, I present our recently released software package, Phoebe (https://mir-group.github.io/phoebe/), which efficiently predicts electron and phonon transport by solving the Boltzmann transport equation (BTE) from a full scattering matrix formalism. Using this new framework, we can predict a range of properties including electrical, thermal, and thermoelectric effects using an extensive set of BTE solvers suited to the needs of different material systems. Additionally, we demonstrate that Phoebe achieves performance at scale through MPI +OpenMP parallelization and GPU acceleration. In this talk, I will discuss the current functionality of Phoebe as well as future directions for the package.

This talk is part of the Lennard-Jones Centre series.

This talk is included in these lists:

• Hanchen DaDaDash
• Lennard-Jones Centre
• Zoom link: https://zoom.us/j/92447982065?pwd=RkhaYkM5VTZPZ3pYSHptUXlRSkppQT09

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