Nantah team overthrows the achievements of normal temperature superconductivity: South Korea studies pseudo superconductivity

Recently, South Korea announced a research result of room temperature superconductivity, which has attracted global attention. This research involves a kind of lead apatite named LK-99, which can behave as superconductor below 127 ℃. If this research can be confirmed, it will be a major discovery that changes physics from any angle, and will bring revolutionary improvements to science and technology in all fields of mankind. However, this research in South Korea has also aroused some doubts. Because before that, human beings have studied for decades, but have failed to find superconducting materials in the normal temperature range. Such materials usually exist in the environment of minus one or two degrees centigrade. Wen Haihu, director of the Superconducting Physics and Materials Research Center of Nanjing University, also made his own judgment. He said in an interview that according to their data, it may be that this material itself has very weak diamagnetism, and when it reaches a certain balance with gravity, it forms a weak magnetic suspension state. But this is not the proper state of superconducting maglev, but more like an illusion that looks like superconductivity. It is worth mentioning that in March this year, Ranga Dias, a physicist at the University of Rochester in the United States, announced the latest progress in room temperature superconductivity technology, claiming that superconductivity was achieved at 21 degrees Celsius, which caused a global sensation. However, his research results did not stand up to scrutiny. In a paper published on May 11, the team led by Wen Haihu officially overturned the research results of Ranga Dias. They concluded that it is not feasible to realize room temperature superconductivity in the lutetium nitrogen hydrogen system used by Ranga Dias.

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