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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2410.00372 |
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| _version_ | 1866914961337352192 |
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| author | Duong, Ngoc My Hanh Berhane, Amanuel M. Mitchell, Dave Ullah, Rifat Zhang, Ting Zhu, He Du, Jia Lam, Simon K. H. Mitchell, Emma E. Bendavid, Avi |
| author_facet | Duong, Ngoc My Hanh Berhane, Amanuel M. Mitchell, Dave Ullah, Rifat Zhang, Ting Zhu, He Du, Jia Lam, Simon K. H. Mitchell, Emma E. Bendavid, Avi |
| contents | In this letter, we demonstrate for the first time the creation of Josephson-like superconducting nanojunctions using a thermal scanning probe to directly inscribe weak links into microstrips of YBa2Cu3O7-x (YBCO). Our method effectively reduces the critical current (Ic) over an order of magnitude. The resulting nanobridges exhibit clear evidence of Josephson effects, of SNS-type junctions, as shown by both the DC and AC Josephson effects. This approach provides a novel and flexible method for scaling up quantum mechanical circuits that operate at liquid nitrogen temperatures. Additionally, it offers a promising pathway for modifying properties of the junctions in-situ and post fabrication. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_00372 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Direct writing of high temperature superconducting Josephson junctions using a thermal scanning probe Duong, Ngoc My Hanh Berhane, Amanuel M. Mitchell, Dave Ullah, Rifat Zhang, Ting Zhu, He Du, Jia Lam, Simon K. H. Mitchell, Emma E. Bendavid, Avi Superconductivity Materials Science Quantum Physics In this letter, we demonstrate for the first time the creation of Josephson-like superconducting nanojunctions using a thermal scanning probe to directly inscribe weak links into microstrips of YBa2Cu3O7-x (YBCO). Our method effectively reduces the critical current (Ic) over an order of magnitude. The resulting nanobridges exhibit clear evidence of Josephson effects, of SNS-type junctions, as shown by both the DC and AC Josephson effects. This approach provides a novel and flexible method for scaling up quantum mechanical circuits that operate at liquid nitrogen temperatures. Additionally, it offers a promising pathway for modifying properties of the junctions in-situ and post fabrication. |
| title | Direct writing of high temperature superconducting Josephson junctions using a thermal scanning probe |
| topic | Superconductivity Materials Science Quantum Physics |
| url | https://arxiv.org/abs/2410.00372 |