Cooling of electrons via superconducting tunnel junctions and their arrays exhibiting nodal lines
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912958961942528 |
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| author | Aliani, Linus Kornich, Viktoriia |
| author_facet | Aliani, Linus Kornich, Viktoriia |
| contents | We study theoretically a process of cooling electrons using a superconducting tunnel junction with a $π$ phase difference and a usual insulator or a ferroelectric in-between, and an array of such junctions with ferroelectric layers in-between. These setups have a complex structure of entropy due to nodal lines, where the density of states can be divergent or larger than for a free electron gas at a chemical potential level. We consider a small current running from the bath of electrons through the setup, where electrons have to have higher entropy, and thus remove heat from the bath. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_08342 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Cooling of electrons via superconducting tunnel junctions and their arrays exhibiting nodal lines Aliani, Linus Kornich, Viktoriia Mesoscale and Nanoscale Physics We study theoretically a process of cooling electrons using a superconducting tunnel junction with a $π$ phase difference and a usual insulator or a ferroelectric in-between, and an array of such junctions with ferroelectric layers in-between. These setups have a complex structure of entropy due to nodal lines, where the density of states can be divergent or larger than for a free electron gas at a chemical potential level. We consider a small current running from the bath of electrons through the setup, where electrons have to have higher entropy, and thus remove heat from the bath. |
| title | Cooling of electrons via superconducting tunnel junctions and their arrays exhibiting nodal lines |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2511.08342 |