A1 Refereed original research article in a scientific journal

Single-Quantum-Dot Heat Valve



Authors: B. Dutta, D. Majidi, N. W. Talarico, N. Lo Gullo, H. Courtois, C. B. Winkelmann

Publisher: AMER PHYSICAL SOC

Publication year: 2020

Journal: Physical Review Letters

Journal name in source: PHYSICAL REVIEW LETTERS

Journal acronym: PHYS REV LETT

Article number: ARTN 237701

Volume: 125

Issue: 23

Number of pages: 6

ISSN: 0031-9007

eISSN: 1079-7114

DOI: https://doi.org/10.1103/PhysRevLett.125.237701

Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication//51152583


Abstract
We demonstrate gate control of electronic heat flow in a thermally biased single-quantum-dot junction. Electron temperature maps taken in the immediate vicinity of the junction, as a function of the gate and bias voltages applied to the device, reveal clearly defined Coulomb diamond patterns that indicate a maximum heat transfer at the charge degeneracy point. The nontrivial bias and gate dependence of this heat valve results from the quantum nature of the dot at the heart of device and its strong coupling to leads.

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Last updated on 2024-26-11 at 17:17