arXiv subjects

G. Kiršanskas

Publications and source records attributed to G. Kiršanskas.

2 recordsLinked to original sources

arXiv2018

Quantifying the impact of phonon scattering on electrical and thermal transport in quantum dots

We report the inclusion of phonon scattering to our recently established numerical package QmeQ for transport in quantum dot systems. This enables straightforward calculations for a large variety of devices. As examples we show (i) transport in a double-dot structure, where energy relaxation is crucial to match the energy difference between the levels, and (ii) the generation of electrical power by contacting cold electric contacts with quantum dot states, which are subjected to heated phonons.

cond-mat.mes-hall↗

arXiv2016

Thermopower signatures and spectroscopy of the canyon of conductance suppression

Interference effects in quantum dots between different transport channels can lead to a strong suppression of conductance, which cuts like a canyon through the common conductance plot [Phys. Rev. Lett. 104, 186804 (2010)]. In the present work, we consider the thermoelectric transport properties of the canyon of conductance suppression using the second-order von Neumann approach. We observe a characteristic signal for the zeros of the thermopower. This demonstrates that thermoelectric measurements are an interesting complimentary tool to study complex phenomena for transport through confined systems.

cond-mat.mes-hall↗