Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 74: Molecular Electronics and Photonics
TT 74.2: Vortrag
Mittwoch, 14. März 2018, 16:15–16:30, H 3005
Time-dependent framework for energy and charge currents in nanoscale systems — •Thomas Lehmann1, Alexander Croy1,2, Rafael Gutiérrez1,2, and Gianaurelio Cuniberti1,2,3 — 1Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01062 Dresden, Germany — 2Dresden Center for Computational Materials Science (DCMS), TU Dresden, 01062 Dresden, Germany — 3Center for Advancing Electronics Dresden, TU Dresden, 01062 Dresden, Germany
The calculation of time-dependent charge and energy currents in nanoscale systems is a challenging task. Nevertheless it is crucial for gaining a deep understanding of the relevant processes at the nanoscale. We extend the auxiliary-mode approach for time-dependent charge transport to allow for the calculation of energy and heat currents for arbitrary time-dependencies. We apply the approach to illustrative examples, demonstrating its usefulness for a wide-range of problems, such as thermoelectric effects in driven systems.