General Theory of Josephson Diodes
Motivated by recent progress in the superconductivity nonreciprocal phenomena, we study the general theory of Josephson diodes. The central ingredient for Josephson diodes is the asymmetric proximity process inside the tunneling barrier. From the symmetry breaking point of view, there are two types...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-11-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.12.041013 |
| _version_ | 1828160399240855552 |
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| author | Yi Zhang Yuhao Gu Pengfei Li Jiangping Hu Kun Jiang |
| author_facet | Yi Zhang Yuhao Gu Pengfei Li Jiangping Hu Kun Jiang |
| author_sort | Yi Zhang |
| collection | DOAJ |
| description | Motivated by recent progress in the superconductivity nonreciprocal phenomena, we study the general theory of Josephson diodes. The central ingredient for Josephson diodes is the asymmetric proximity process inside the tunneling barrier. From the symmetry breaking point of view, there are two types of Josephson diodes: inversion breaking and time-reversal breaking. For the inversion breaking case, applying voltage bias could effectively tune the proximity process like the voltage-dependent Rashba coupling or electric polarization giving rise to I_{c}(V)≠I_{c}(-V) and I_{r+}≠I_{r-}. For the time-reversal breaking case, the current flow could adjust the internal time-reversal breaking field like magnetism or time-reversal breaking electron-electron pairing, which leads to I_{c+}≠I_{c-}. All these results provide a complete understanding and the general principles of realizing Josephson diodes, especially the recently found NbSe_{2}/Nb_{3}Br_{8}/NbSe_{2} Josephson diodes. |
| first_indexed | 2024-04-12T00:17:54Z |
| format | Article |
| id | doaj.art-32e8daab08e549838ec746fee164daf6 |
| institution | Directory Open Access Journal |
| issn | 2160-3308 |
| language | English |
| last_indexed | 2024-04-12T00:17:54Z |
| publishDate | 2022-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review X |
| spelling | doaj.art-32e8daab08e549838ec746fee164daf62022-12-22T03:55:47ZengAmerican Physical SocietyPhysical Review X2160-33082022-11-0112404101310.1103/PhysRevX.12.041013General Theory of Josephson DiodesYi ZhangYuhao GuPengfei LiJiangping HuKun JiangMotivated by recent progress in the superconductivity nonreciprocal phenomena, we study the general theory of Josephson diodes. The central ingredient for Josephson diodes is the asymmetric proximity process inside the tunneling barrier. From the symmetry breaking point of view, there are two types of Josephson diodes: inversion breaking and time-reversal breaking. For the inversion breaking case, applying voltage bias could effectively tune the proximity process like the voltage-dependent Rashba coupling or electric polarization giving rise to I_{c}(V)≠I_{c}(-V) and I_{r+}≠I_{r-}. For the time-reversal breaking case, the current flow could adjust the internal time-reversal breaking field like magnetism or time-reversal breaking electron-electron pairing, which leads to I_{c+}≠I_{c-}. All these results provide a complete understanding and the general principles of realizing Josephson diodes, especially the recently found NbSe_{2}/Nb_{3}Br_{8}/NbSe_{2} Josephson diodes.http://doi.org/10.1103/PhysRevX.12.041013 |
| spellingShingle | Yi Zhang Yuhao Gu Pengfei Li Jiangping Hu Kun Jiang General Theory of Josephson Diodes Physical Review X |
| title | General Theory of Josephson Diodes |
| title_full | General Theory of Josephson Diodes |
| title_fullStr | General Theory of Josephson Diodes |
| title_full_unstemmed | General Theory of Josephson Diodes |
| title_short | General Theory of Josephson Diodes |
| title_sort | general theory of josephson diodes |
| url | http://doi.org/10.1103/PhysRevX.12.041013 |
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