Thermovoltage in quantum dots with attractive interaction
Journal article, 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


Jens Schulenborg

Niels Bohr Institute

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Maarten Wegewijs

Forschungszentrum Jülich

RWTH Aachen University

Janine Splettstoesser

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Applied Physics Letters

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

Vol. 116 24 243103

Areas of Advance

Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)

Subject Categories

Other Physics Topics

Fusion, Plasma and Space Physics

Condensed Matter Physics



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