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

Autor:	Wang, Hongyang, Yao, Yao, Shi, Ke, Zhao, Yijing, Wu, Hao, Wu, Zhixing, Geng, Zhihui, Ye, Shufeng, Chen, Ning
Rok vydání:	2024
Předmět:	Condensed Matter - Superconductivity
Druh dokumentu:	Working Paper
Popis:	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. Comment: 7 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2401.00999 Zobrazit plný text záznamu View this record from Arxiv