Academic Journal
A Thermodynamic Approach to Measuring Entropy in a Few-Electron Nanodevice
| العنوان: | A Thermodynamic Approach to Measuring Entropy in a Few-Electron Nanodevice |
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| المؤلفون: | Pyurbeeva, E, Mol, JA |
| بيانات النشر: | MDPI |
| سنة النشر: | 2021 |
| المجموعة: | Queen Mary University of London: Queen Mary Research Online (QMRO) |
| الوصف: | 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. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | 640 - ? |
| اللغة: | unknown |
| تدمد: | 1099-4300 |
| Relation: | Entropy; Pyurbeeva, Eugenia, and Jan A. Mol. "A Thermodynamic Approach To Measuring Entropy In A Few-Electron Nanodevice". Entropy, vol 23, no. 6, 2021, p. 640. MDPI AG, doi:10.3390/e23060640. Accessed 16 June 2021.; https://qmro.qmul.ac.uk/xmlui/handle/123456789/72558 |
| DOI: | 10.3390/e23060640 |
| الاتاحة: | https://qmro.qmul.ac.uk/xmlui/handle/123456789/72558 https://doi.org/10.3390/e23060640 |
| Rights: | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited ; Attribution 3.0 United States ; http://creativecommons.org/licenses/by/3.0/us/ ; © 2021, The Author(s) |
| رقم الانضمام: | edsbas.D89523A8 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 10994300 |
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| DOI: | 10.3390/e23060640 |