While Xu Chuan was busy verifying the strong diamagnetic properties of KL-66 material, the first batch of results from the materials industry that paid attention to KL-66 material and carried out replica experiments on it have come out.
The first to speak out was the School of Materials Science at the University of Rochester in the United States, which published the results of its own replica experiments on the Internet.
Like the Chuanhai Institute of Materials, a professor of materials science at the School of Materials at the University of Rochester also failed to detect the Meissner effect on the replica KL-66.
Not only that, in only one set of replica experiments, the research team at the University of Rochester failed to even replicate the strong diamagnetic effect.
At the same time, in China, on the other side, the research team of the Chinese Academy of Sciences also announced the results of the replica experiment on arxiv.
Unfortunately, the research team of the Chinese Academy of Sciences also failed to observe the Meissner effect on the reproduced KL-66.
However, unlike the research team at the University of Rochester, because of multiple sets of replica experiments, the Chinese Academy of Sciences successfully observed the levitation phenomenon, indicating the potential of this new material to have superconducting properties. .
Of course, it's just possible.
After all, in this re-engraving experiment, except for the failure to observe the Meissner effect, the resistance of the re-engraved KL-66 material itself is not zero, and can even be said to be quite high.
However, the research team of the Chinese Academy of Sciences said that this may be due to the insufficient purity of the materials they synthesized. They will conduct further replica experiments in the future to obtain more data.
The two reproduction results have caused heated discussions on the Internet.
Some people believe that KL-66 is not a room temperature superconducting material. After all, whether it is the simulation calculation results of Xu Chuan or the replica results of the United States and China, it is shown that it is not a superconducting material. The greater possibility is that it is a superconducting material. Strong magnetic materials.
Some people feel that KL-66 still has potential. After all, the research team of the Chinese Academy of Sciences has successfully reproduced the magnetic levitation effect. If the purity of the KL-66 material is further purified, the resistance may be reduced.
In addition, some people are also asking when the replica results from Chuanhai Materials Research Laboratory will be released.
After all, a few days ago, Xu Chuan publicly stated that the Sichuan-Hai Materials Research Institute was already conducting replica experiments, and many people were looking forward to the results of this expert.
While these melon-eating netizens were having a happy discussion, someone on the arxiv website immediately noticed the paper uploaded by Xu Chuan.
【arxiv! Professor Xu uploaded the paper, and the reprint results came out! 】
【How to say? What did Sichuan God say? 】
[The Chuanhai Institute of Materials conducted three sets of replica experiments, and no effect was observed in any of them. However, one set had a strong diamagnetic effect and a levitation effect was observed. According to the paper uploaded by Chuanshen, South Korea’s KL-66 is basically out of date. 】
[The magnetic levitation effect has been observed. According to the Chinese Academy of Sciences, doesn’t this just indicate the possibility of superconductivity? Maybe it’s because the material used in the reproduction is not pure enough? 】
[Indeed, maybe the stick was saved and the steps for re-engraving were not given. After all, this is room temperature superconductivity. If you develop it, will you announce it all? It's impossible when you think about it. 】
[Oh, stop struggling. What Chuanshen uploaded this time was not only the re-engraving experiment results, but also the strong magnetic principle of the KL-66 magnetic levitation effect. I don’t understand that principle, but judging from the results, it’s not super-powerful at all. Guidance is just that the material has the same magnetic properties as a magnet. 】
[KL-66 is an inversion asymmetric Weyl semi-metal material. The spin-orbit coupling of Cu atoms has an impact on the material. Damn it, what are you talking about? 】
[Congratulations, you are indeed a real boss. 】
【(▽｀)Is this the fastest time that room temperature superconductivity has come to an end? Sichuan God's shot is a sure kill. 】
[Let’s break up. If room-temperature superconductivity could be made by hand like this, humans would have stepped out of the Milky Way long ago. 】
[Le, I still have the same opinion. Although I don’t understand superconducting materials, I understand the country of South Korea. 】
[Laughing, where are those sticks from before? Jump, jump again? 】
After figuring out the mechanism of KL-66's strong magnetism, Xu Chuan sorted out the relevant information and uploaded it to arxiv.
As expected, countless people in the materials science community are waiting for the results of his replica experiments.
As soon as the relevant replica experiment results were uploaded, they were downloaded by countless people.
In the United States, at the University of Rochester, Professor Schmuel Hiss, a top expert in the field of superconducting materials, held a freshly printed document that still smelled of ink, and read it carefully.
In the field of superconductivity, he has full say. He discovered the barium-yttrium-cuprate high-temperature superconducting material that is famous in the United States and even the world.
In addition, he led the people to conduct the first batch of KL-66 replica experiments uploaded to the Internet.
After flipping through the paper in his hand, Professor Shmuel Hiss took off his glasses and rubbed his eyes.
On the side, his assistant and student asked impatiently: "Professor, how is the result? Is there still hope for KL-66?"
Sighing, Professor Schmuel Hiss replied: "Judging from the paper, I'm afraid there is little hope, and it can even be said that there is almost no hope."
After a slight pause, he continued with emotion: "As expected of the famous Professor Xu, in such a short period of time, he found the mechanism behind the magnetic levitation of KL66 material. If it is done for other people, even if it is done by me personally, There may not be any results in two months.”
Although I really hope that the KL-66 material is a room temperature superconductor, after all, if this is true, it means that materials science will usher in a major change and leap.
But unfortunately, judging from the latest paper, hope has been dashed.
Although it is only a paper on arxiv, who in the academic community does not know the habits of Professor Xu?
If he is not completely sure, he will not easily draw a conclusion on a certain matter and make it public.
And judging from the papers uploaded to arxiv, whether it is the replica experiment of KL-66 material or the mechanism behind the magnetic levitation phenomenon of KL-66 material, Professor Xu has given a very complete explanation. Those data Theoretically speaking, there is nothing wrong with it.
After hearing the answer, the assistant and student beside him was silent for a moment, and then said: "This is probably the fastest news in the field of room temperature superconductivity has ended, right?"
News about room temperature superconducting materials is not unprecedented in the past.
In the past, room-temperature superconductivity in the fields of ternary hydride and hydrogen sulfide was not a big deal. It would take at least several months to end in the materials world.
After all, it takes time to reproduce and confirm.
And this time, has it been ten days since South Korea uploaded the KL-66 paper? The conclusion has almost been drawn.
Hearing the students' sighs, Professor Schmuel Heath smiled and said: "Actually, this is quite good, so that everyone's time will not be wasted."
"After all, academic disputes, especially in such an important field as room temperature superconducting materials, often require many scientific researchers to spend a lot of time to verify."
"Now, I believe that after this paper comes out, not many research institutions will focus on this, and everyone can continue to do their own things."
For academics, maintaining a rigorous and realistic academic style is the basic norm.
On this basis, some academic disputes or academic fraud will mislead the judgment of the academic community, lead to the emergence of erroneous conclusions, and undermine the standardization of academic research.
For example, in 2014, Haruko Obokata, who was called a "national treasure" and "Marie Curie of the island nation" by the small island nation, caused a sensation in the world with her "universal cell" STAP cell academic fraud case.
Because of the importance of universal cells, many scientific researchers in the field of biomedicine from various countries have paid attention to them, and have invested in personnel to carry out replica verification.
However, after wasting a lot of time, manpower, and material resources from many scholars, it was discovered that this was just a fake scientific research.
There is no doubt that this is extremely bad behavior.
And this time, the KL-66, after Professor Xu's intervention, will probably end soon, and it will be gone before the stock market has time to cut a wave of leeks.
However, what makes Schmuel Heath feel a little strange is that after reading Professor Xu's research paper on the KL-66 magnetic levitation mechanism, he always felt that the paper was missing something.
That’s not to say that this paper cannot be used to prove that the magnetic levitation effect of KL-66 material does not originate from the superconducting mechanism, but something else.
If it is simply to prove the source of the magnetic levitation mechanism, this paper is definitely enough. The paper clearly explains the source of the magnetic levitation effect of KL-66 material.
But as a top materialist, when he looked at the paper, he always felt that there was something missing in the paper, incomplete, and seemed to have been deliberately hidden.
However, he was not very proficient in computational materials science, but he could not find out what the problem was, nor could he figure out what the hidden thing was.
PS: Second update, please give me monthly tickets