Thermovoltage in quantum dots with attractive interaction
Artikel i vetenskaplig tidskrift, 2020

We study the linear and nonlinear thermovoltage of a quantum dot with effective attractive electron-electron interaction and weak, energy-dependent tunnel coupling to electronic contacts. Remarkably, we find that the thermovoltage shows signatures of repulsive interaction, which can be rationalized. These thermovoltage characteristics are robust against large potential and temperature differences well into the nonlinear regime, which we expect can be demonstrated in current state-of-the-art experiments. Furthermore, under nonlinear operation, we find extended regions of large power production at efficiencies on the order of the Curzon-Ahlborn bound interrupted only by a characteristic sharp dip.

Electron-electron interactions

Nanocrystals

Författare

Jens Schulenborg

Niels Bohr Institute

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Maarten Wegewijs

Forschungszentrum Jülich

RWTH Aachen University

Janine Splettstoesser

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 116 24 243103

Styrkeområden

Energi

Ämneskategorier

Annan fysik

Fusion, plasma och rymdfysik

Den kondenserade materiens fysik

DOI

10.1063/5.0008866

Mer information

Senast uppdaterat

2020-08-25