ArticleEntropy (Basel, Switzerland)2021
A Thermodynamic Approach to Measuring Entropy in a Few-Electron Nanodevice.
Article in Entropy (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Quantum Dot Thermal Machines-A Guide to Engineering.Entropy (Basel, Switzerland) · 2025Article
- Regulation of quantum spin conversions in a single molecular radical.Nature nanotechnology · 2024Article
- Spin effects on transport and zero-bias anomaly in a hybrid Majorana wire-quantum dot system.Scientific reports · 2023Article
- A case study on development of thermodynamic entropy measuring device and its implication on the human body.Case studies in thermal engineering · 2022Article
- A Robust Protocol for Entropy Measurement in Mesoscopic Circuits.Entropy (Basel, Switzerland) · 2022Article
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2 authors.
Funding
Abstract
The entropy of a system gives a powerful insight into its microscopic degrees of freedom; however, standard experimental ways of measuring entropy through heat capacity are hard to apply to nanoscale systems, as they require the measurement of increasingly small amounts of heat. Two alternative entropy measurement methods have been recently proposed for nanodevices: through charge balance measurements and transport properties. We describe a self-consistent thermodynamic framework for applying thermodynamic relations to few-electron nanodevices-small systems, where fluctuations in particle number are significant, whilst highlighting several ongoing misconceptions. We derive a relation (a consequence of a Maxwell relation for small systems), which describes both existing entropy measurement methods as special cases, while also allowing the experimentalist to probe the intermediate regime between them. Finally, we independently prove the applicability of our framework in systems with complex microscopic dynamics-those with many excited states of various degeneracies-from microscopic considerations.
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