Evidence of superconductivity in LK99 materials, presented by a Chinese team, is presumably the first experimental support for LK99-type superconductivity. The

Evidence of superconductivity in LK99 materials, presented by a Chinese team, is presumably the first experimental support for LK99-type superconductivity. The paper lacks evidence of zero resistance, attributed to the presence of only a small amount of superconducting material, "the long-standing vortex state can only be thought of stemming from superconductivity." However, numerous modifications made to their material make it difficult to still refer to it as LK99.