Dresden 2020 – scientific programme

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MA: Fachverband Magnetismus

MA 42: Posters Magnetism I

MA 42.26: Poster

Wednesday, March 18, 2020, 15:00–18:00, P3

Numerical solution of linearized electron-electron scattering integrals for ultrafast dynamics and transport — •Félix Dusabirane, Kai Leckron, and Hans Christian Schneider — TU Kaiserslautern, Kaiserslautern, Germany

We study electronic dynamics due to electron-electron scattering in the framework of a linearized Boltzmann collision integral for bandstructures with 3-dimensional Brillouin zones. We present a numerical scheme that allows one to obtain excellent conservation of the carrier density over several tens of picoseconds with a limited numerical effort. We benchmark this scheme for parabolic carrier dispersions against quasi 1-dimensional calculations and analytical results [1]. We also discuss how this approach can be extended to calculate electronic scattering contributions for models of hot-electron transport [2].

[1] V. V. Kabanov and A. S. Alexandrov, Phys. Rev. B 78, 174514 (2008).

[2] D. M. Nenno, B. Rethfeld, and H. C. Schneider, Phys. Rev. B 98, 224416 (2018).