Episode 2283
LK-99
Thu, 2023-Aug-03 03:18 UTC
Length - 2:11
Direct Link
Welcome to popular Wiki of the Day where we read the summary of a popular Wikipedia page every day.
With 278,985 views on Wednesday, 2 August 2023 our article of the day is LK-99.
LK-99 (from Lee‒Kim‒1999) is a potential room-temperature superconductor with a gray‒black appearance.: 8 It has a hexagonal structure slightly modified from lead‒apatite, by introducing small amounts of copper. The material was first discovered and manufactured by a team of researchers including Sukbae Lee (이석배) and Ji-Hoon Kim (김지훈) from Korea University.: 1 The team claims it functions as a superconductor at ambient pressure and below 400 K (127 °C; 260 °F).: 1 As of 3 August 2023, the synthesis of LK-99 and observation of its superconductivity at any temperature have not been peer-reviewed or independently replicated. The announcement was widely shared and the reaction by the scientific world was mainly skeptical due to the extraordinary nature of the claims, the repeated failure of previous claims of room-temperature superconductors, and errors and inconsistencies in the pre-published papers. Independent teams are attempting to replicate the South Korean team's work, with results expected in August 2023 owing to the straightforward method of producing the material. The initial studies announcing the discovery were uploaded to the open-access repository of electronic preprints arXiv. Lee claimed that the uploaded preprint papers were incomplete, while coauthor Hyun-Tak Kim (김현탁) stated that one of the papers contained defects.
This recording reflects the Wikipedia text as of 03:18 UTC on Thursday, 3 August 2023.
For the full current version of the article, see LK-99 on Wikipedia.
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