<a href="https://arxiv.org/pdf/2401.00999.pdf" rel="nofollow">https://arxiv.org/pdf/2401.00999.pdf</a><p>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 Optoelectronics Engineering,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100049, China
2 State Key Laboratory of Luminescent Materials and Devices and Department of Physics,
South China University of Technology, Guangzhou 510640, China
3 Beijing 2060 Technology Co., Ltd, Beijing 100084, China
4 School of Materials Science and Engineering,
Huazhong University of Science and Technology, Wuhan 430074, China
5 Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food safety,
College of Chemistry, Fuzhou University, Fuzhou 350108, China
6 School of Engineering, Course of Applied Science,
Tokai University, Hiratsuka 2591292, Japan
7 School of Materials Science and Engineering,
University of Science and Technology Beijing, Beijing 100083, China
(Dated: January 3, 2024)<p>"In summary, the diamagnetism in CSLA has been investigated via both M-T curves and
hysteresis M-H loops, which can be observed up to 250 K. Given the ZFC-FC bifurcation
at above 300 K, we think there is still great chance to observe room-temperature superconductivity. The signals in our sample are still extremely weak, so we have to devote efforts
to further synthesizing scalable samples with more active components."