Indications of superconductivities in blend of variant apatite and covellite
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arXiv
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| Autores principales: | , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866929399451877376 |
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| author | Wang, Hongyang Zhao, Yijing Wu, Hao Wang, Ling Wu, Zhixing Geng, Zhihui Xiao, Jiewen Xue, Weiwei Ye, Shufeng Chen, Ning Qiao, Xianfeng Yao, Yao |
| author_facet | Wang, Hongyang Zhao, Yijing Wu, Hao Wang, Ling Wu, Zhixing Geng, Zhihui Xiao, Jiewen Xue, Weiwei Ye, Shufeng Chen, Ning Qiao, Xianfeng Yao, Yao |
| contents | Through heavily doping sulfur into an apatite framework, we synthesize a new blend mainly comprising variant apatite and covellite (copper sulfide). Magnetic measurement exhibits that significant diamagnetism appears at around 260 K and drops dramatically below 30 K implying coexistence of two superconducting phases. The upper critical magnetic field is larger than 1000 Oe at 250 K. Electric measurement manifests that the current-voltage curves deviate from the normal linear lineshape suggesting the presence of zero-resistance effect, and the critical current is around 50 $μ$A at 140 K. These exotic magnetic and electric features strongly indicate these two components, variant apatite and covellite, individually trigger two superconducting phases at near-room and low temperatures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_17525 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Indications of superconductivities in blend of variant apatite and covellite Wang, Hongyang Zhao, Yijing Wu, Hao Wang, Ling Wu, Zhixing Geng, Zhihui Xiao, Jiewen Xue, Weiwei Ye, Shufeng Chen, Ning Qiao, Xianfeng Yao, Yao Superconductivity Through heavily doping sulfur into an apatite framework, we synthesize a new blend mainly comprising variant apatite and covellite (copper sulfide). Magnetic measurement exhibits that significant diamagnetism appears at around 260 K and drops dramatically below 30 K implying coexistence of two superconducting phases. The upper critical magnetic field is larger than 1000 Oe at 250 K. Electric measurement manifests that the current-voltage curves deviate from the normal linear lineshape suggesting the presence of zero-resistance effect, and the critical current is around 50 $μ$A at 140 K. These exotic magnetic and electric features strongly indicate these two components, variant apatite and covellite, individually trigger two superconducting phases at near-room and low temperatures. |
| title | Indications of superconductivities in blend of variant apatite and covellite |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2406.17525 |