Experimental video Bilibili is on fire! Preliminary reproduction of room temperature superconducting materials in South Korea by the Chinese team? Video | Room Temperature | Team

Recently, a team of South Korean scientists claimed to have discovered the world's first room temperature superconducting material - "modified lead apatite crystal structure.".

This news caused a sensation in the physics community, and many teams began to study the findings of the Korean team.

In addition, the discovery of "room temperature superconducting materials" has also driven capital markets to pay attention to the superconducting industry.

Latest News

Huake team synthesizes LK-99 crystals

Bilibili UP host "Guanshankou Male Technician" announced in the first video that they have synthesized LK-99 crystals that can be magnetically suspended. The crystal has a larger suspension angle than the sample obtained by Sukbae Lee, CEO of the Korean Quantum Energy Research Center, and has the potential to achieve true non-contact superconducting magnetic levitation.

The introduction shows that the UP is led by Professor Chang Haixin from the School of Materials Science and Technology of Huazhong University of Science and Technology, and the members are postdoctoral researcher Wu Hao and doctoral student Yang Li.

Professor Chang Haixin from Huazhong University of Science and Technology confirmed to reporters that the experimental video titled "LK-99 Verification" uploaded by the Bilibili UP host today did indeed come from their team. As of the time of publication, the above video has exceeded 4.3 million views on Bilibili.

From the released video, it can be seen that the LK-99 crystal synthesized by the research team of Huazhong University of Science and Technology is a "small black dot" under a microscope, with a diameter calculated in micrometers. Place a neodymium iron boron magnet underneath it, and as the neodymium iron boron magnet moves closer and farther away, the "small black spot" continuously falls or stands up. Both the S and N poles produce the above reaction, which is repulsion independent of the magnetic pole and exhibits diamagnetism.

Two days ago, the UP host also stated on Bilibili, "There is diamagnetism, but it is relatively weak. There is no zero resistance, and the overall conductor curve is only half. It is estimated that if there is superconducting phase, it is also a small amount of superconducting impurities, which cannot form continuous superconducting passage."

But the UP owner also pointed out that currently only the Meisner effect has been verified, with only a sample several tens of micrometers in size. If further resistance measurements are made, the next batch of samples will need to be produced.

The reporter contacted a person close to Professor Chang Haixin's research group at the School of Materials Science and Technology of Huazhong University of Science and Technology, who said, "Everything is still uncertain. Professor Chang asked to pay attention to their official announcement."

In daily life, almost all conductors have resistance, which leads to energy loss in everything from small household appliances to ultra-high voltage wires. But if superconducting materials without resistance are applied in various fields related to electricity, energy loss will be greatly reduced - some even consider it as one of the ultimate solutions to the human energy crisis. In addition, other electrical and magnetic properties of superconductors will also bring revolutionary impacts to cutting-edge technologies such as magnetic levitation transportation and nuclear fusion.

Recently, multiple teams around the world have been involved in replicating validation experiments. Researchers from the School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, and the Shenyang National Research Center for Materials Science, Institute of Metals, Chinese Academy of Sciences also verified the research of the Korean team. Among them, a paper published by the team of Beihang University showed that they did not detect superconductivity based on the materials synthesized by the Korean team.

On July 31st, Professor Sun Yue from Southeast University released an experimental video titled "Room Temperature Superconducting Reproduction Experiment - Full Process". The video stated that there is no superconducting magnetic levitation phenomenon, and whether it is room temperature superconductivity remains to be verified.

The concept of A-share superconductivity surged

Multiple concept stocks responded

Although the superconductivity of LK-99 still needs further research and verification, the capital market has responded significantly to the concept of superconductivity. On August 1st, among Wind Superconducting concept stocks, Falsheng, Baili Electric, and Yongding Shares rose their limit up, Western Superconducting rose more than 7%, and Lianchuang Optoelectronics rose 6.3%.

Regarding this, the reporter contacted the above-mentioned companies one by one. Regarding whether LK-99 has superconductivity, industry companies generally adopt a wait-and-see attitude. Some companies have expressed that it is difficult to judge whether it is successful arbitrarily, and sufficient and repeated experimental verification is needed. Meanwhile, even if the room temperature superconducting material is confirmed to be true this time, it will take a long time to achieve industrial application.

Among them, Yongding Group's main products include second-generation high-temperature superconducting tapes and their application equipment, as well as superconducting electrical products; Lianchuang Optoelectronics carries out industry applications with high-temperature superconducting magnet technology as its core, including induction heating and monocrystalline silicon growth furnaces; Baili Electric has a subsidiary engaged in the research and development of high-temperature superconducting materials; Western Superconducting is currently the only commercial production enterprise for low-temperature superconducting wires in China.

Although Falsheng has been included in the superconducting concept stock by some institutions and recently recorded a five-day three board trading, the company mainly engages in metal products and environmental protection business, and does not seem to be involved in the superconducting field. On August 1st, the reporter called the company as an investor, and Falsheng stated that the company does not have any superconducting related business.

In addition, the response of the above-mentioned companies to the possibility of the recent success of "room temperature superconducting materials" has generally shown a wait-and-see attitude.

Western Superconducting stated that the technology is currently in the experimental stage and the company is unable to provide too much evaluation. It is currently closely monitoring. Yongding Group stated that the company is also waiting for the verification process, which may require repeated verification and verification to adhere to the principle of scientificity. This requires a certain amount of time and a more scientific description to give everyone a more accurate understanding.

At present, listed companies in the field of superconductivity mainly focus on low-temperature superconductivity and high-temperature superconductivity layouts. If the confirmation of room temperature superconductivity materials is successful, what impact will it have on these companies?

Lianchuang Optoelectronics stated that the superconducting magnets produced by the company are downstream of superconducting materials, and their magnets can be used for low-temperature superconductivity, high-temperature superconductivity, or room temperature superconductivity. At present, the company chooses to use high-temperature superconductivity because its current carrying characteristics and refrigeration conditions are relatively better choices. "Assuming that room temperature superconductivity is achieved, we can completely adopt the solution of room temperature superconductivity, which is definitely cheaper. If room temperature superconductivity is made into magnets to connect downstream, the market space will definitely be more extensive."

Meanwhile, Lianchuang Optoelectronics also stated that in the short term, room temperature superconductivity may be a hot topic for the company, but it does not have a rapid promoting effect on the business. Because it may take 20-30 years for new materials to emerge and truly achieve industrial applications.

"High temperature superconducting materials such as yttrium barium copper oxygen were discovered in the 1990s, but it took 20-30 years for this material to become a strip, during which there was a relatively long incubation period. It was only after the strip became mature that we could use it for superconducting applications."