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Dresden 2020 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 66: Poster Session Transport

TT 66.6: Poster

Donnerstag, 19. März 2020, 15:00–19:00, P2/EG

A theoretical study of the interplay of electron and phonon transport in nanosystems — •Jakob Bätge and Michael Thoss — Institute of Physics, University of Freiburg, Freiburg, Germany

In view of the tremendous recent progress in experimental techniques to study charge and heat transport in nanostructures based on single atoms or molecules [1,2], theoretical research on basic transport properties of nanosystems is of significant interest.
Here, we investigate the mutual influence of electronic and phononic transport driven by voltage and temperature gradients through basic model systems from a theoretical perspective. For this purpose, we use the hierarchical quantum master equation approach [3], which generalizes perturbative master equation methods by including higher-order contributions as well as non-Markovian memory and allows for the systematic convergence of the results.

[1] L. Cui et al., Science 355, 1192 (2017).

[2] M. Popp et al., Appl. Phys. Lett. 115, 083108 (2019).

[3] C. Schinabeck et al., Phys. Rev. B 94, 201407(R) (2016).

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