Phase-controlled heat modulation with Aharonov-Bohm interferometers
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866914838883598336 |
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| author | Hwang, Sun-Yong Sothmann, Björn López, Rosa |
| author_facet | Hwang, Sun-Yong Sothmann, Björn López, Rosa |
| contents | A heat modulator is proposed based on a voltage-biased Aharonov-Bohm interferometer. Once an electrical bias is applied, Peltier effects give rise to a flow of heat that can be modulated by a magnetic flux. We determine the corresponding temperature changes using a simple thermal model. Our calculations demonstrate that the modulated temperature difference can be as large as 80 mK at base temperature about 600 mK with relative temperature variations reaching 10\%. Our model also predicts, quite generally, the emergence of spin-polarized heat flows without any ferromagnetic contacts, if Rashba spin-orbit interaction is combined with the applied magnetic flux, which potentially paves the way towards caloritronic information processing. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_12543 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Phase-controlled heat modulation with Aharonov-Bohm interferometers Hwang, Sun-Yong Sothmann, Björn López, Rosa Mesoscale and Nanoscale Physics A heat modulator is proposed based on a voltage-biased Aharonov-Bohm interferometer. Once an electrical bias is applied, Peltier effects give rise to a flow of heat that can be modulated by a magnetic flux. We determine the corresponding temperature changes using a simple thermal model. Our calculations demonstrate that the modulated temperature difference can be as large as 80 mK at base temperature about 600 mK with relative temperature variations reaching 10\%. Our model also predicts, quite generally, the emergence of spin-polarized heat flows without any ferromagnetic contacts, if Rashba spin-orbit interaction is combined with the applied magnetic flux, which potentially paves the way towards caloritronic information processing. |
| title | Phase-controlled heat modulation with Aharonov-Bohm interferometers |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2406.12543 |