Possible Meissner effect near room temperature in copper-substituted 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_ | 1866916079372075008 |
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| author | Wang, Hongyang Yao, Yao Shi, Ke Zhao, Yijing Wu, Hao Wu, Zhixing Geng, Zhihui Ye, Shufeng Chen, Ning |
| author_facet | Wang, Hongyang Yao, Yao Shi, Ke Zhao, Yijing Wu, Hao Wu, Zhixing Geng, Zhihui Ye, Shufeng Chen, Ning |
| contents | With copper-substituted lead apatite below room temperature, we observe diamagnetic dc magnetization under magnetic field of 25 Oe with remarkable bifurcation between zero-field-cooling and field-cooling measurements, and under 200 Oe it changes to be paramagnetism. A glassy memory effect is found during cooling. Typical hysteresis loops for superconductors are detected below 250 K, along with an asymmetry between forward and backward sweep of magnetic field. Our experiment suggests at room temperature the Meissner effect is possibly present in this material. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_00999 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Possible Meissner effect near room temperature in copper-substituted lead apatite Wang, Hongyang Yao, Yao Shi, Ke Zhao, Yijing Wu, Hao Wu, Zhixing Geng, Zhihui Ye, Shufeng Chen, Ning Superconductivity With copper-substituted lead apatite below room temperature, we observe diamagnetic dc magnetization under magnetic field of 25 Oe with remarkable bifurcation between zero-field-cooling and field-cooling measurements, and under 200 Oe it changes to be paramagnetism. A glassy memory effect is found during cooling. Typical hysteresis loops for superconductors are detected below 250 K, along with an asymmetry between forward and backward sweep of magnetic field. Our experiment suggests at room temperature the Meissner effect is possibly present in this material. |
| title | Possible Meissner effect near room temperature in copper-substituted lead apatite |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2401.00999 |