A South Korean research team believes that thay has found an solution for superconductor.
Fantastic news if it is correct!!
LK-99 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 1 August 2023, the material has not been confirmed to be superconducting at any temperature. The synthesis of LK-99 and observation of its superconductivity have not been peer reviewed or independently replicated.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, 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.