The room temperature superconducting chalice has been removed again? Let the bullet fly for a while.

Recently, South Korea researchers in the preprint websitearXivPosted on the platform named"The first room temperature and atmospheric pressure superconductor"The paper (one and two works areLeeandKim), claimingLK-99(a copper-doped lead apatite material) can be127C below the performance of superconductivity. Once the paper was publishedSensationalthe wholeThe scientific community.

Superconductivity, or super conductivity, is a substance that exhibits zero resistance and complete diamagnetism at extremely low temperatures (Also known“Meissner effect") phenomenon, currently mainly used in large-scale integrated circuits, high-voltage transmission lines, maglev trains and other scenarios.room temperature superconductivity,is at room temperature/Realize super conductive under normal temperature condition. Superconducting material is the key to achieve the superconducting effect, but the currentSuperconducting materials only enter the superconducting state at about minus two hundred degrees., soIt is difficult to apply on a large scale. The scientific community believes that room temperature superconductingImplementation,WillIt will change in energy, transportation, computing, medical testing and many other fields.,It is a Nobel Prize-level achievement.

In fact,In recent years, the discoveryThe rumors of "room temperature superconductivity" have never stopped, but in the end it is alwaysfailure to reproduce the research,No more.2015German physicistMikhail EremetsTeamHairAbout220 GPadown,203K(approx.-70℃)Whenin the structure of hydrogen sulfideFoundThe superconductivity. To2018German chemistEremetsLanthanum decahydride was found inAbout170 GPa, critical temperature250 K(-23C) under the appearance of superconductivity.2019year of American scientists.Maddury WednesdayAgainFurther in about190 GPadown,260 K(approx.-13.15℃)Foundhydrogenated lanthanum materialofSuperconductivity.2020Year10In September, the journal Nature reported that Indian-born physicistsRanga DiasJoint University of Nevada and other teams in the field of room temperature superconducting breakthrough, achieved.15℃,About267 GPaSuperconductivity of hydrocarbon sulfides under pressure.The article was later found inExistence of data processingThe problem, the documented research was also unable to be reproduced and ended up being withdrawn. Withdrawal6Months later,Ranga DiasInThis year3Month7A lecture was held at the annual spring meeting of American physics on the same day, claiming againhis teamCreateA reaction of hydrogen, nitrogen and rare earth metal lutetiumroom temperature superconductivitymaterial, this material in21℃and about1GpaUnder pressure, it can conduct current in the form of zero resistance. But the move is still considered fake by peers.

The papers published by the researchers in this South Korea follow the aboveRanga DiasThe room temperature superconducting paper is different, all kinds of evidence and process have. Exploring the brief history of the birth of the paper, it is also surprising to find that the South Korea team has gone down this road.20Years or so. Of course, scientific research is not a family after all, and any scientific research should stand up to scrutiny and verification. Fortunately, the synthesis path of room temperature superconducting materials disclosed in the paper is only three steps, which is considered by netizens to belong to the hand rubbing level of high school students. Therefore, it has triggered a wave of repetition in major laboratories around the world.

2023.8.1In the morning, Beijing University of Aeronautics and Astronautics and Shenyang National Laboratory of Materials Science, Chinese Academy of Sciences released two articles on recurrenceLK-99paper, the experimental results are not ideal, did not findLK-99of superconductivity, but there is no conclusive conclusion on the superconductivity of the material. On the same day, researchers at the Lawrence Berkeley National Laboratory in the United States also released a paper that they confirmed.LK-99The existence of superconducting characteristics, the specific ability to achieve superconducting needs to wait for experimental results. On the same day,TwitterPublished by Russian scientists.Iris AlexandraSuccessfully prepared with room temperature diamagneticLK-99Crystal news, and room temperature diamagnetism is one of the hallmarks of superconducting crystals. In the afternoon of the same day,BThe station appeared.LK-99The anti-magnetic verification video, said postdoctoral Wu Hao and doctoral student Yang Li of the School of Materials of Huazhong University of Science and Technology, under the guidance of Professor Chang Haixin, successfully verified the synthesis of magnetic levitation for the first time.LK-99Crystals. The team verified the Meissner effect of the sample material. The appearance of the Meissner effect phenomenon indicates that the report of the South Korea team may not be completely false, but the superconducting properties of the material need to be further prepared. More samples are verified by testing the resistance of the material.

In conclusion, so far, the reproduction test can only showLK-99Has a certain anti-magnetic,There's no strong evidenceLK-99It is a normal temperature and normal pressure superconducting material.In addition, South Korea team papers have some misinformation, so many industry experts are still skeptical.The situation we're facing now,At leastis to obtaina kindNew diamagnetic materials, and this has made some contributions to human progress. If the follow-upLK-99The new room temperature superconducting material is verified.Not onlyWillIn the future to subvert manyIndustry,sparking an industrial revolution, and even subvert some of the physics consensus that has been condensed in the past..It is worth mentioning that room temperature superconductivityLK-99This material has been around since2021Year8Month25The South Korea team applied for a patent this year.3It was only made public in January and is currently being actively passed.PCTaccess to various countries to seek patent protection.IfLK-99The patent was eventually granted,This major technology-based patent may be monopolized.Market. Interestingly, three days after the South Korea research team released their paper on room temperature superconductivity, the U.S. Patent and Trademark Office authorized it.Tai quantuss Mobilea room temperature of the companyIIType superconductor patent. It can be felt that the undercurrent is surging behind the competition in science and technology and intellectual property between the major powers.