High-temperature field-free superconducting diode effect in high-T c cuprates
Abstract The superconducting diode effect (SDE) is defined by the difference in the magnitude of critical currents applied in opposite directions. It has been observed in various superconducting systems and attracted high research interests. However, the operating temperature of the SDE is typically...
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-55880-4 |
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| author | Shichao Qi Jun Ge Chengcheng Ji Yiwen Ai Gaoxing Ma Ziqiao Wang Zihan Cui Yi Liu Ziqiang Wang Jian Wang |
| author_facet | Shichao Qi Jun Ge Chengcheng Ji Yiwen Ai Gaoxing Ma Ziqiao Wang Zihan Cui Yi Liu Ziqiang Wang Jian Wang |
| author_sort | Shichao Qi |
| collection | DOAJ |
| description | Abstract The superconducting diode effect (SDE) is defined by the difference in the magnitude of critical currents applied in opposite directions. It has been observed in various superconducting systems and attracted high research interests. However, the operating temperature of the SDE is typically low and/or the sample structure is rather complex. For the potential applications in non-dissipative electronics, efficient superconducting diodes working in zero magnetic field with high operating temperatures and a simple configuration are highly desired. Here, we report the observation of a SDE under zero magnetic field with operating temperatures up to 72 K and efficiency as high as 22% at 53 K in high-transition-temperature (high-T c) cuprate superconductor Bi2Sr2CaCu2O8+δ (BSCCO) flake devices. The rectification effect persists beyond two hundred sweeping cycles, confirming the stability of the superconducting diode. Our results offer promising developments for potential applications in non-dissipative electronics, and provide insights into the mechanism of field-free SDE and symmetry breakings in high-T c superconductors. |
| format | Article |
| id | doaj-art-f5e5a7d5907d40c284fbf6b6193f20f8 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-f5e5a7d5907d40c284fbf6b6193f20f82025-01-12T12:31:13ZengNature PortfolioNature Communications2041-17232025-01-011611810.1038/s41467-025-55880-4High-temperature field-free superconducting diode effect in high-T c cupratesShichao Qi0Jun Ge1Chengcheng Ji2Yiwen Ai3Gaoxing Ma4Ziqiao Wang5Zihan Cui6Yi Liu7Ziqiang Wang8Jian Wang9International Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityDepartment of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of ChinaDepartment of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of ChinaDepartment of Physics, Boston CollegeInternational Center for Quantum Materials, School of Physics, Peking UniversityAbstract The superconducting diode effect (SDE) is defined by the difference in the magnitude of critical currents applied in opposite directions. It has been observed in various superconducting systems and attracted high research interests. However, the operating temperature of the SDE is typically low and/or the sample structure is rather complex. For the potential applications in non-dissipative electronics, efficient superconducting diodes working in zero magnetic field with high operating temperatures and a simple configuration are highly desired. Here, we report the observation of a SDE under zero magnetic field with operating temperatures up to 72 K and efficiency as high as 22% at 53 K in high-transition-temperature (high-T c) cuprate superconductor Bi2Sr2CaCu2O8+δ (BSCCO) flake devices. The rectification effect persists beyond two hundred sweeping cycles, confirming the stability of the superconducting diode. Our results offer promising developments for potential applications in non-dissipative electronics, and provide insights into the mechanism of field-free SDE and symmetry breakings in high-T c superconductors.https://doi.org/10.1038/s41467-025-55880-4 |
| spellingShingle | Shichao Qi Jun Ge Chengcheng Ji Yiwen Ai Gaoxing Ma Ziqiao Wang Zihan Cui Yi Liu Ziqiang Wang Jian Wang High-temperature field-free superconducting diode effect in high-T c cuprates Nature Communications |
| title | High-temperature field-free superconducting diode effect in high-T c cuprates |
| title_full | High-temperature field-free superconducting diode effect in high-T c cuprates |
| title_fullStr | High-temperature field-free superconducting diode effect in high-T c cuprates |
| title_full_unstemmed | High-temperature field-free superconducting diode effect in high-T c cuprates |
| title_short | High-temperature field-free superconducting diode effect in high-T c cuprates |
| title_sort | high temperature field free superconducting diode effect in high t c cuprates |
| url | https://doi.org/10.1038/s41467-025-55880-4 |
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