A scientific analysis has come out that LK-99먹튀검증, which was disclosed by Korean researchers as the world’s first room-temperature superconductor, was not a room-temperature superconductor.
The leading academic journal Nature published an article on the results of scientific analysis conducted since the end of July and the reactions of overseas scientists.
This is reporter Choi So-ra.
[Reporter]
The international journal Nature published an article saying that LK-99 is not a room temperature superconductor.
Initial verification after the release of LK-99 did not confirm that LK-99 was not a superconductor, but after dozens of verifications, experts said they were confident that LK-99 was not a room temperature superconductor.
According to the verification results mentioned in the report, first, American and European researchers presented experimental and theoretical evidence that LK-99 cannot exhibit superconductivity due to its structure.
Later, an American scientist reported that the reason LK-99 showed a phenomenon similar to superconductivity was due to impurities.
Every time one LK-99 is synthesized, 17 copper and 5 sulfur remain, resulting in impurities such as copper sulfide.
The scientist said that the temperature at which copper sulfide undergoes a phase transition is 104°C, which is similar to the phase transition temperature of superconductors claimed by Korean researchers.
The conclusive verification came from the Max Planck Institute in Germany.
The research team said they made pure LK-99 in a way that prevents any impurities from entering during the synthesis of LK-99, and disclosed purple transparent crystals.
Verification of that crystal reported that LK-99 was not a superconductor, but an ‘insulator’ whose resistance was too great to measure its conductivity.
In addition, although LK-99 exhibits weak ferromagnetism and diamagnetism, it is concluded that the strength is insufficient to partially float in a magnetic field, and superconductivity does not appear.
After the LK-99 manufacturing method was released earlier, it was said that LK-99 was synthesized through social media, and several videos of metal floating in the air were released, raising expectations.
However, Nature said that among the scientists who actually synthesized LK-99, no phenomenon of floating in a magnetic field was observed.
An Australian scientist evaluated that the situation can change here only when the Korean research team directly provides LK-99 samples.
Nature requested a comment from the LK-99 research team in this regard, but said it did not receive an answer, and the research team did not respond to YTN’s question either.
This is Choi So-ra from YTN Science.
