High-Efficiency Thermoelectric Transport in Aharonov-Bohm-Casher Rings
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866914116492328960 |
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| author | García, Diego Arias, Sergio López, Rosa |
| author_facet | García, Diego Arias, Sergio López, Rosa |
| contents | Quantum heat engines are nanoscale devices that convert heat into work by exploiting quantum effects, such as coherence and interference. Previous studies of these devices did not consider spin-dependent effects, which can influence the thermoelectric performance of the engine. In this work, we study the thermoelectric behavior of a quantum heat engine based on an Aharonov-Bohm ring - a mesoscopic ring where electrons exhibit interference depending on the magnetic flux it encloses - incorporating Rashba spin-orbit interaction (SOI), which couples the electron's motion and spin. We find that Rashba SOI enhances the figure of merit $ZT$, measure of the engine's conversion efficiency. Our results suggest that controlling spin-dependent interference could lead to improvements in the fabrication of efficient thermoelectric devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_23579 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-Efficiency Thermoelectric Transport in Aharonov-Bohm-Casher Rings García, Diego Arias, Sergio López, Rosa Mesoscale and Nanoscale Physics Quantum heat engines are nanoscale devices that convert heat into work by exploiting quantum effects, such as coherence and interference. Previous studies of these devices did not consider spin-dependent effects, which can influence the thermoelectric performance of the engine. In this work, we study the thermoelectric behavior of a quantum heat engine based on an Aharonov-Bohm ring - a mesoscopic ring where electrons exhibit interference depending on the magnetic flux it encloses - incorporating Rashba spin-orbit interaction (SOI), which couples the electron's motion and spin. We find that Rashba SOI enhances the figure of merit $ZT$, measure of the engine's conversion efficiency. Our results suggest that controlling spin-dependent interference could lead to improvements in the fabrication of efficient thermoelectric devices. |
| title | High-Efficiency Thermoelectric Transport in Aharonov-Bohm-Casher Rings |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2510.23579 |