Quantum dot as thermal rectifier
R. Scheibner (1), M. Koenig (1), D. Reuter (2), A.D. Wieck (2), H., Buhmann (1), L.W. Molenkamp (1) ((1)Physikalisches Institut (EP3),, Universitaet Wuerzburg, Germany; (2)Lehrstuhl fuer Angewandte, Festkoerperphysik, Ruhr-Universitaet Bochum, Germany)
TL;DR
This paper demonstrates thermal rectification in a semiconductor quantum dot, showing asymmetric thermopower oscillations at high magnetic fields due to a high orbital momentum state.
Contribution
It reports the first observation of thermal rectification in a quantum dot caused by magnetic field-induced orbital effects.
Findings
Thermal rectification observed at high magnetic fields.
Asymmetry linked to high orbital momentum state.
Thermopower oscillations show asymmetric line shape.
Abstract
We report the observation of thermal rectification in a semiconductor quantum dot, as inferred from the asymmetric line shape of the thermopower oscillations. The asymmetry is observed at high in-plane magnetic fields and caused by the presence of a high orbital momentum state in the dot.
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