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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.09216 |
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| _version_ | 1866916870148325376 |
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| author | Xing, Shuya Wei, Zhongxu Chen, Xu Zhang, Junming Yuan, Zhenyu Zhao, Jiali Jin, Feng Sun, Tao Ren, Huifen Cui, Minjie Chang, Hong Ying, Tianping Guo, Jiangang Lei, Hechang Zhao, Shifeng Zhou, Wenping Li, Xinqi Qian, Tian Ji, Wei Cheng, Zhihai |
| author_facet | Xing, Shuya Wei, Zhongxu Chen, Xu Zhang, Junming Yuan, Zhenyu Zhao, Jiali Jin, Feng Sun, Tao Ren, Huifen Cui, Minjie Chang, Hong Ying, Tianping Guo, Jiangang Lei, Hechang Zhao, Shifeng Zhou, Wenping Li, Xinqi Qian, Tian Ji, Wei Cheng, Zhihai |
| contents | The simultaneous presence of polarity and metallicity or superconductivity in a material signifies the exotic polar metallic or superconducting (SC) state, while such materials are extremely rare due to their exclusive nature. Recently, the interweaved CDW and antipolar charge orders have been discovered in a metallic superatomic crystal of Au6Te12Se8 (ATS), while their interplay and competition with the following emergent SC state remains elusive. Here, we report a further experimental investigation of the SC state emerged from the preformed CDW and antipolar order states using scanning tunneling microscopy/spectroscopy in combination with transport and Raman measurements. The temperature-dependent pre-formation and condensation of Cooper pairs are experimentally identified. The pre-existent CDW is gradually suppressed by the preformed Cooper pairs, and then the antipolar charge order is spatially suppressed into a ferrielectric-like polar order by the condensed Cooper pairs of SC state. The exotic charge-polarized superconducting state is discovered in the polar metal of ATS, suggesting a valuable platform for the exploration of intriguing polar superconducting properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_09216 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Charge-polarized superconducting state emerging in a superatomic antipolar metal Xing, Shuya Wei, Zhongxu Chen, Xu Zhang, Junming Yuan, Zhenyu Zhao, Jiali Jin, Feng Sun, Tao Ren, Huifen Cui, Minjie Chang, Hong Ying, Tianping Guo, Jiangang Lei, Hechang Zhao, Shifeng Zhou, Wenping Li, Xinqi Qian, Tian Ji, Wei Cheng, Zhihai Superconductivity The simultaneous presence of polarity and metallicity or superconductivity in a material signifies the exotic polar metallic or superconducting (SC) state, while such materials are extremely rare due to their exclusive nature. Recently, the interweaved CDW and antipolar charge orders have been discovered in a metallic superatomic crystal of Au6Te12Se8 (ATS), while their interplay and competition with the following emergent SC state remains elusive. Here, we report a further experimental investigation of the SC state emerged from the preformed CDW and antipolar order states using scanning tunneling microscopy/spectroscopy in combination with transport and Raman measurements. The temperature-dependent pre-formation and condensation of Cooper pairs are experimentally identified. The pre-existent CDW is gradually suppressed by the preformed Cooper pairs, and then the antipolar charge order is spatially suppressed into a ferrielectric-like polar order by the condensed Cooper pairs of SC state. The exotic charge-polarized superconducting state is discovered in the polar metal of ATS, suggesting a valuable platform for the exploration of intriguing polar superconducting properties. |
| title | Charge-polarized superconducting state emerging in a superatomic antipolar metal |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2503.09216 |