Phase controlled multi-terminal Josephson junction in ternary hybrid nanowire
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arXiv
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| Autori principali: | , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866917067010080768 |
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| author | Kahn, Sabbir A. Stampfer, Lukas Marti-Sanchez, Sara Olsteins, Dags Carrad, Damon James Jansen, Thies Johansson, Jonas Arbiol, Jordi Krogstrup, Peter Jespersen, Thomas Sand |
| author_facet | Kahn, Sabbir A. Stampfer, Lukas Marti-Sanchez, Sara Olsteins, Dags Carrad, Damon James Jansen, Thies Johansson, Jonas Arbiol, Jordi Krogstrup, Peter Jespersen, Thomas Sand |
| contents | This work presents multiterminal Josephson junctions in hybrid semiconductor-superconductor InAsSb-Al nanocrosses. Hybrid nanocrosses are grown using molecular beam epitaxy and are formed through As-assisted merging of oppositely directed InAsSb nanowires. We explain this complex ternary merging mechanism using a temperature-dependent phase diagram and investigate the detailed crystal structure with atomic-resolution imaging. The hybrid nanoscrosses enabled the fabrication of multiterminal Josephson junction devices, which were characterized at low temperatures. The supercurrent through each terminal combination was measured as a function of the density in the junction and the relative phase of the terminals, which was controlled by an external magnetic field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_04719 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Phase controlled multi-terminal Josephson junction in ternary hybrid nanowire Kahn, Sabbir A. Stampfer, Lukas Marti-Sanchez, Sara Olsteins, Dags Carrad, Damon James Jansen, Thies Johansson, Jonas Arbiol, Jordi Krogstrup, Peter Jespersen, Thomas Sand Materials Science Mesoscale and Nanoscale Physics Superconductivity This work presents multiterminal Josephson junctions in hybrid semiconductor-superconductor InAsSb-Al nanocrosses. Hybrid nanocrosses are grown using molecular beam epitaxy and are formed through As-assisted merging of oppositely directed InAsSb nanowires. We explain this complex ternary merging mechanism using a temperature-dependent phase diagram and investigate the detailed crystal structure with atomic-resolution imaging. The hybrid nanoscrosses enabled the fabrication of multiterminal Josephson junction devices, which were characterized at low temperatures. The supercurrent through each terminal combination was measured as a function of the density in the junction and the relative phase of the terminals, which was controlled by an external magnetic field. |
| title | Phase controlled multi-terminal Josephson junction in ternary hybrid nanowire |
| topic | Materials Science Mesoscale and Nanoscale Physics Superconductivity |
| url | https://arxiv.org/abs/2511.04719 |