2023/08/07 by Ivan Timokhin, Timokhin, Ivan, Chuhongxu Chen +8 · 1 voice
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Crystal Structures and Properties #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Superconductivity (cond-mat.supr-con) #Zeolite Catalysis and Synthesis #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.2308.03823
openalex publication_date 2023/08/07 · arxiv published 2023/08/07 · arxiv updated 2023/08/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Recently, two arXiv preprints (arXiv:2307.12008, arXiv:2307.12037) reported signatures of superconductivity above room temperature (SART) and at ambient pressure, striking worldwide experimental research efforts in replicating the results3-6, as well as theoretical attempts to explain the purported superconductivity7-11. The material of interest has chemical formula Pb10-xCux(PO4)6O, where x ≈ 1, and was named by the authors as LK-99. It belongs to lead apatite family, and was synthesised from two precursors, lanarkite (PbSO4⋅PbO) and copper phosphide (Cu3P). Here we performed a systematic study on LK-99, starting from solid-state synthesis, followed by characterisation and transport measurements. We did not observe any signatures of superconductivity in our samples of LK-99.