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arXiv · 1504.04048

Thermopower signatures and spectroscopy of the canyon of conductance suppression

G. Kiršanskas·S. Hammarberg·O. Karlström·A. Wacker
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Abstract

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.

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G. Kiršanskas, S. Hammarberg, O. Karlström, A. Wacker. 2015-04-15. Thermopower signatures and spectroscopy of the canyon of conductance suppression. https://doi.org/10.1103/physrevb.94.045427

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