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

New paper on near room temperature super conductor (250K)

Polymarket | Meissner effect confirmed near room temperat...
Polymarket | This market will resolve to "Yes" if the Meissner effect claimed in the paper is replicated by December 31, 202...