16 stories tagged lk-99, newest first.
687 points by zaikunzhang | 287 comments
arXiv preprint reporting possible Meissner effect near room temperature in copper-substituted lead apatite (LK-99-type material), based on magnetization measurements.
2063 points by Brajeshwar | 679 comments
Nature news article from August 2023 explaining how researchers determined that LK-99 is not a room-temperature superconductor.
317 points by platz | 276 comments
arXiv preprint reporting that LK-99-like samples show half levitation due to soft ferromagnetism, with no evidence of superconductivity.
500 points by gabesullice | 313 comments
Tweet by Andrew McCalip showing a video of his LK-99 superconductor replication sample tested with a magnet for the Meissner effect on day 8.5.
2308 points by spekcular | 1146 comments
arXiv preprint reporting synthesis of LK-99 crystals that show room-temperature, ambient-pressure magnetic levitation, replicating Sukbae Lee et al.'s claims.
734 points by segfaultbuserr | 348 comments
arXiv preprint reporting zero resistance above 100 K at ambient pressure in a synthesized polycrystalline sample of copper-doped lead apatite (LK-99).
613 points by thecopy | 325 comments
A tweet reporting that a Southeast University team observed zero electrical resistance below 110 K in LK-99 samples, with video screenshots and charts.
497 points by spekcular | 373 comments
arXiv preprint presenting DFT calculations of the electronic structure of the putative room-temperature superconductor LK-99 (Pb9Cu(PO4)6O), finding flat Cu bands at the Fermi level.
1158 points by nneonneo | 735 comments
Derek Lowe's In the Pipeline blog post on Science.org (Aug 2023) discussing new developments around the claimed room-temperature superconductor LK-99.
551 points by b800h | 255 comments
A tweet by Andrew Cote reporting a claimed replication of the LK-99 superconductor by a Huazhong University team, explaining the levitation evidence and its caveats.
444 points by lnyan | 268 comments
arXiv preprint (v2) by Lee et al. claiming LK-99, a copper-doped lead apatite, is a room-temperature ambient-pressure superconductor showing levitation.
374 points by lawrenceyan | 181 comments
arXiv preprint by Sinéad Griffin using DFT to identify correlated isolated flat bands in copper-substituted lead phosphate apatite (LK-99).
576 points by spekcular | 240 comments
arXiv preprint reporting a synthesis of the LK-99 compound Pb10-xCux(PO4)6O that shows semiconducting rather than superconducting transport.
489 points by fofoz | 492 comments
A SpaceBattles forum thread discussing claims of the LK-99 room-temperature, ambient-pressure superconductor and the online efforts to replicate it.
1142 points by etiam | 450 comments
Derek Lowe's In the Pipeline blog post on Science.org discussing claims of a room-temperature superconductor and assessing the strength of the evidence.
1400 points by Akronymus | 770 comments
arXiv preprint by Lee, Kim, and Kwon claiming LK-99, a modified lead-apatite, is a room-temperature, ambient-pressure superconductor.