Observation of diamagnetic strange-metal phase in sulfur-copper codoped lead apatite
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916237571784704 |
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| author | Wang, Hongyang Wu, Hao Chen, Ning Qiao, Xianfeng Wang, Ling Wu, Zhixing Geng, Zhihui Xue, Weiwei Ye, Shufeng Yao, Yao |
| author_facet | Wang, Hongyang Wu, Hao Chen, Ning Qiao, Xianfeng Wang, Ling Wu, Zhixing Geng, Zhihui Xue, Weiwei Ye, Shufeng Yao, Yao |
| contents | By codoping sulfur and copper into lead apatite, the crystal grains are directionally stacked and the room-temperature resistivity is reduced from insulating to $2\times10^{-5}~Ω\cdot$m. The resistance-temperature curve exhibits a nearly linear relationship at low temperature suggesting the presence of strange-metal phase, and a second-order phase transition is then observed at around 230~K during cooling the samples. A possible Meissner effect is present in dc magnetic measurements. Further hydrothermal lead-free synthesis results in smaller resistance and stronger diamagnetism, demonstrating the essential component might be sulfur-substituted copper apatite and the alkalis matter as well. A clear pathway towards superconductivity in this material is subsequently benchmarked. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_11126 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Observation of diamagnetic strange-metal phase in sulfur-copper codoped lead apatite Wang, Hongyang Wu, Hao Chen, Ning Qiao, Xianfeng Wang, Ling Wu, Zhixing Geng, Zhihui Xue, Weiwei Ye, Shufeng Yao, Yao Superconductivity By codoping sulfur and copper into lead apatite, the crystal grains are directionally stacked and the room-temperature resistivity is reduced from insulating to $2\times10^{-5}~Ω\cdot$m. The resistance-temperature curve exhibits a nearly linear relationship at low temperature suggesting the presence of strange-metal phase, and a second-order phase transition is then observed at around 230~K during cooling the samples. A possible Meissner effect is present in dc magnetic measurements. Further hydrothermal lead-free synthesis results in smaller resistance and stronger diamagnetism, demonstrating the essential component might be sulfur-substituted copper apatite and the alkalis matter as well. A clear pathway towards superconductivity in this material is subsequently benchmarked. |
| title | Observation of diamagnetic strange-metal phase in sulfur-copper codoped lead apatite |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2403.11126 |