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arXiv:2401.00999cond-mat.supr-con

Possible Meissner effect near room temperature in copper-substituted lead apatite

Hongyang Wang, Yao Yao, Ke Shi, Yijing Zhao, Hao Wu, Zhixing Wu, Zhihui Geng, Shufeng Ye, Ning Chen

Abstract

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.

arXiv comments
7 pages, 4 figures
Journal reference
DOI
Subjects
cond-mat.supr-conSuperconductivity

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Linked by 4 identifiable commenters in 4 comments across 4 threads, from Jan 2024 to Jan 2024. Found in 2 HN submissions from Jan 2024 to Jan 2024. Open submission discussions.

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Discussed in comments4 threads

  1. Global Room-Temperature Superconductivity in Graphite 1 comment
  2. Researchers say they’ve replicated LK-99 room temperature superconductor 1 comment

    • https://arxiv.org/pdf/2401.00999.pdf Possible Meissner effect near room temperature in copper-substituted lead apatite Hongyang Wang1∗ , Yao Yao2† , Ke Shi3 , Yijing Zhao3 , Hao Wu4 , Zhixing Wu5 , Zhihui Geng6 , Shufeng Ye1 , and Ning Chen7 1 Center of Materials Science and…

      neomView on HNParent context

  3. Room-Temperature Superconductor Replicated 1 comment

    • https://arxiv.org/abs/2401.00999 for more, maybe. (nothing I know much about, just reposting clearer form of link that appears in images in the hopes it helps others)

      teunispetersView on HNParent context

  4. LK-99 saga continues: Chinese labs report replication at -23°C 1 comment

    • Paper: https://arxiv.org/abs/2401.00999 Manifold: https://manifold.markets/postjawline/will-the-meissner-effec...

      mercatView on HNParent context

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