Time：2023.08.10Browse：1
On July 22nd, a South Korean research team published a paper on the preprint website arXiv, claiming to have synthesized the world's first room temperature and atmospheric pressure superconductor, named LK-99.
Superconductivity refers to superconductivity. Under normal temperature and pressure, almost all conductors have resistance, resulting in thermal energy loss during current conduction. Superconductors are materials that can conduct current with zero loss due to the disappearance of resistance, and have complete diamagnetism (internal magnetic induction strength is zero), with advantages such as stability, low loss, and fast transmission.
Previously, superconducting materials needed to enter the superconducting state at lower temperatures. The keyword "room temperature superconductivity" mentioned by the Korean team in this paper refers to the phenomenon of superconductivity achieved under room temperature conditions. According to the standards of condensed matter physics, room temperature refers to 300K (27 ℃).
Therefore, the news from the South Korean side immediately attracted global attention, while also being questioned. According to Observer Network, citing a report from Yonhap News Agency on July 28th, members of the research team in South Korea revealed that the relevant paper has not been completed yet and there are "many defects". It was published by a team member without the permission of other authors, and the website has been requested to remove the paper.
According to the report, the preprint website arXiv shows that the first authors to publish papers on the platform include Suk bae Lee, a representative of the Quantum Energy Research Center, Ji hoon Kim, who previously worked at the Korea Institute of Electronic Communications (ETRI), and Young wan Kwon, a research professor at Goryeo University. ArXiv is a website that can quickly publish papers without peer review, allowing anyone to easily publish them, which means that the website's papers have not yet been validated by the academic community.
According to media reports, according to the authors of the South Korean team, the room temperature superconductivity paper published online has not yet been completed, and the team has not yet prepared for publication. On July 28th, one of the members of the South Korean team, Li Xipei, said in an interview with Yonhap News Agency: "Without obtaining the permission of other authors, Professor Quan Yingwen published it without authorization. (The team) has requested (arXiv) to remove the paper." He also stated that this study is a supplement to the superconductor paper published in the Korean journal in April this year and has applied for review in international journals. The team will organize the research results and send them to formal academic journals, which will undergo a peer review process and soon receive academic evaluation. Jin Xianzhuo also confirmed in an interview with American scientific media that the paper still has "many flaws" and was published without his own permission. In addition, according to sources at Goryeo University, the school is currently unable to contact Quan Yingwan.
Successfully reproduced
Previously, due to the fact that superconductors typically needed to be cooled to an extremely low temperature of around -196 degrees Celsius and required extremely high pressure to become superconducting states, they were extremely difficult to apply in practice. If superconductivity can be achieved at room temperature and pressure, it is of great significance for the development of human technology.
It is worth noting that before the South Korean team requested the paper to be removed from the shelves, the news of its publication had already led many laboratories around the world into a wave of room temperature superconductivity replication. On the afternoon of August 1st, the "Guanshankou Male Technician", the head of the UP program at Huake University, announced the successful reproduction of the material. On the same day, Professor Chang Haixin from Huazhong University of Science and Technology confirmed to the media that the experimental video titled "LK-99 (Potential Room Temperature Superconducting Material) Verification" uploaded by the UP host of the B station was indeed from his team.
On the day before the authenticity of the video was confirmed by a professor at the University of Science and Technology of China, at 17:58 on July 31, Sinid M. Griffin, a researcher at the Lawrence Berkeley National Laboratory (LBNL) in the United States, submitted a paper titled "Origin of Isolated Flat Bands in Copper Doped Lead Apatite" on the preprint website arXiv. It was interpreted that the results of the paper support LK-99 as a room temperature ambient pressure superconductor.
Does this mean that room temperature superconductivity has made a certain breakthrough? Chen Jia, an independent international strategy researcher, told Beijing Business Daily reporters that it is neither blindly optimistic to say that this work has achieved significant breakthroughs, nor to underestimate the tsunami effect of the technological revolution on the eve of its outbreak.
However, Chen Jia also pointed out that the significance of room temperature superconductivity is unimaginable, and can even change the entire experimental physics and modern industrial civilization. Because compared to the first industrial revolution based on steam, the current modern civilization of all humanity is an electrified society based on electricity. If superconductivity is to be achieved at room temperature and normal atmospheric conditions, its actual impact on human society will definitely far exceed the current wave of AGI technology revolution
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