Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator
Abstract It is well-known in optics that the spectroscopic resolution of a diffraction grating is much better compared to an interference device having just two slits, as in Young’s famous double-slit experiment. On the other hand, it is well known that a classical superconducting quantum interferen...
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| Format: | Article |
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Nature Portfolio
2023-07-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-023-01288-9 |
| _version_ | 1797778875240939520 |
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| author | Xiangyu Song Soorya Suresh Babu Yang Bai Dmitry S. Golubev Irina Burkova Alexander Romanov Eduard Ilin James N. Eckstein Alexey Bezryadin |
| author_facet | Xiangyu Song Soorya Suresh Babu Yang Bai Dmitry S. Golubev Irina Burkova Alexander Romanov Eduard Ilin James N. Eckstein Alexey Bezryadin |
| author_sort | Xiangyu Song |
| collection | DOAJ |
| description | Abstract It is well-known in optics that the spectroscopic resolution of a diffraction grating is much better compared to an interference device having just two slits, as in Young’s famous double-slit experiment. On the other hand, it is well known that a classical superconducting quantum interference device (SQUID) is analogous to the optical double-slit experiment. Here we report experiments and present a model describing a superconducting analogue to the diffraction grating, namely an array of superconducting islands positioned on a topological insulator film Bi0.8Sb1.2Te3. In the limit of an extremely weak field, of the order of one vortex per the entire array, such devices exhibit a critical current peak that is much sharper than the analogous peak of an ordinary SQUID. Therefore, such arrays can be used as sensitive absolute magnetic field sensors. A key finding is that the device acts as a superconducting diode, controlled by magnetic field. |
| first_indexed | 2024-03-12T23:23:49Z |
| format | Article |
| id | doaj.art-f9abf71671934546bfecb0c5b69c2019 |
| institution | Directory Open Access Journal |
| issn | 2399-3650 |
| language | English |
| last_indexed | 2024-03-12T23:23:49Z |
| publishDate | 2023-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj.art-f9abf71671934546bfecb0c5b69c20192023-07-16T11:19:07ZengNature PortfolioCommunications Physics2399-36502023-07-016111110.1038/s42005-023-01288-9Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulatorXiangyu Song0Soorya Suresh Babu1Yang Bai2Dmitry S. Golubev3Irina Burkova4Alexander Romanov5Eduard Ilin6James N. Eckstein7Alexey Bezryadin8Department of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignPico Group, QTF Centre of Excellence, Department of Applied Physics, Aalto University School of ScienceDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignAbstract It is well-known in optics that the spectroscopic resolution of a diffraction grating is much better compared to an interference device having just two slits, as in Young’s famous double-slit experiment. On the other hand, it is well known that a classical superconducting quantum interference device (SQUID) is analogous to the optical double-slit experiment. Here we report experiments and present a model describing a superconducting analogue to the diffraction grating, namely an array of superconducting islands positioned on a topological insulator film Bi0.8Sb1.2Te3. In the limit of an extremely weak field, of the order of one vortex per the entire array, such devices exhibit a critical current peak that is much sharper than the analogous peak of an ordinary SQUID. Therefore, such arrays can be used as sensitive absolute magnetic field sensors. A key finding is that the device acts as a superconducting diode, controlled by magnetic field.https://doi.org/10.1038/s42005-023-01288-9 |
| spellingShingle | Xiangyu Song Soorya Suresh Babu Yang Bai Dmitry S. Golubev Irina Burkova Alexander Romanov Eduard Ilin James N. Eckstein Alexey Bezryadin Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator Communications Physics |
| title | Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator |
| title_full | Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator |
| title_fullStr | Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator |
| title_full_unstemmed | Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator |
| title_short | Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator |
| title_sort | interference diffraction and diode effects in superconducting array based on bismuth antimony telluride topological insulator |
| url | https://doi.org/10.1038/s42005-023-01288-9 |
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