Edge supercurrent in Josephson junctions based on topological materials
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909383551614976 |
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| author | Qi, Junjie Chen, Chui-Zhen Song, Juntao Liu, Jie He, Ke Sun, Qing-Feng Xie, X. C. |
| author_facet | Qi, Junjie Chen, Chui-Zhen Song, Juntao Liu, Jie He, Ke Sun, Qing-Feng Xie, X. C. |
| contents | The interplay between novel topological states and superconductivity has garnered substantial interest due to its potential for topological quantum computing. The Josephson effect serves as a useful probe for edge superconductivity in these hybrid topological materials. In Josephson junctions based on topological materials, supercurrents exhibit unique quantum interference patterns, including the conventional Fraunhofer oscillations, the $Φ_0$-periodic oscillation, and the $2Φ_0$-periodic oscillation in response to the external magnetic field ($Φ_0 = h/2e$ is the flux quantum, $h$ the Planck constant, and $e$ the electron charge). These interference patterns stem from varied Andreev reflection mechanisms and the associated current density profiles. This review seeks to comprehensively examine the theoretical and experimental advancements in understanding the quantum interference patterns of edge supercurrents in Josephson junctions based on quantum spin Hall, quantum Hall, and quantum anomalous Hall systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_06758 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Edge supercurrent in Josephson junctions based on topological materials Qi, Junjie Chen, Chui-Zhen Song, Juntao Liu, Jie He, Ke Sun, Qing-Feng Xie, X. C. Superconductivity Mesoscale and Nanoscale Physics The interplay between novel topological states and superconductivity has garnered substantial interest due to its potential for topological quantum computing. The Josephson effect serves as a useful probe for edge superconductivity in these hybrid topological materials. In Josephson junctions based on topological materials, supercurrents exhibit unique quantum interference patterns, including the conventional Fraunhofer oscillations, the $Φ_0$-periodic oscillation, and the $2Φ_0$-periodic oscillation in response to the external magnetic field ($Φ_0 = h/2e$ is the flux quantum, $h$ the Planck constant, and $e$ the electron charge). These interference patterns stem from varied Andreev reflection mechanisms and the associated current density profiles. This review seeks to comprehensively examine the theoretical and experimental advancements in understanding the quantum interference patterns of edge supercurrents in Josephson junctions based on quantum spin Hall, quantum Hall, and quantum anomalous Hall systems. |
| title | Edge supercurrent in Josephson junctions based on topological materials |
| topic | Superconductivity Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2411.06758 |