Great Country Academician
Chapter 442 No Meissner Effect
One stone caused a thousand waves, and Xu Chuan's answer in class was quickly passed on to the Internet.
Of course, he also uploaded the results of his simulation calculation of KL-66 material.
His judgment on the KL-66 material, at the node of the flow explosion in the field of room temperature superconductivity, can be said to have instantly aroused heated discussions among netizens.
[KL-66 material, Chuan Shen came forward to deny it, it is not a room temperature superconducting material, but a strong magnetic material! 】
[Hey, I'm going to have a good time, if it's really cool, with the controllable nuclear fusion technology, I have no doubt that the electricity bill can be reduced to ten cents per degree. 】
[It’s just a simulation calculation, it’s not real. Before the results of the re-engraving come out, and under the current situation where there is no final conclusion, no one or any organization can stop. After all, the matter is of great importance, and arrogance means defeat. 】
[Indeed, Chuan Shen is a bit reckless this time. It’s okay to wait for the results of the replica experiment to come out before expressing your opinion. 】
[? ? ? Chuan Shen can't even express his opinions, so you have labeled him arrogant? The old man didn't say a definite result, just a preliminary judgment based on calculation and analysis, and the results will be uploaded to arxiv. 】
[Outrageous, arrogant, I'm afraid you can't even understand the thesis uploaded by God Chuan, so you understand the truth. 】
[I don't know superconducting materials, but I know the country of South Korea. It's better to count on the reliability of the small days to count on South Korea, a country addicted to counterfeiting, to love to manufacture superconducting materials. 】
[Hahahaha, 6, lore! 】
Compared with the heated discussions on the Internet, the materials industry has a calmer view on this matter, but many people are very surprised.
No one expected that the famous Professor Xu would stand up and express his views.
Although researchers in the materials industry hope that this KL-66 material is a room-temperature superconductor than the people who eat melons, the spirit of scientific research allows them to maintain the necessary calm when facing such things.
Of course, this is also related to the fact that the replica experiment is basically still in progress.
According to the steps of the paper on arxiv, the steps of replicating the experiment are actually quite simple, but it takes more time.
Even if the replica experiment was carried out as soon as Chuanhai Materials Research Institute did, the results would have to wait another day or two to come out.
Before the re-enactment results came out, researchers in the field of materials seldom came out to express their opinions and opinions.
After all, it would be embarrassing if you were slapped in the face.
Of course, those like Professor Xu who have done simulation calculations before expressing their own opinions and opinions are completely fine.
Even if there is a gap between the final replica experiment and these simulation calculations, there is nothing to say.
After all, theory is theory and experiment is experiment.
What surprised many researchers in the field of materials was that his movements were so fast.
The KL-66 material-related papers have not been published on arxiv for three days, and the targeted formation energy calculations, phonon spectra, and tight-binding model results have been made.
This speed is a bit too exaggerated.
California, Institute of Materials Science and Technology University.
Two middle-aged men in white coats are drinking coffee leisurely in the laboratory, waiting for the mixed powder of copper and phosphorus to be calcined in a high-temperature furnace.
According to the paper on arxiv, this step requires calcination at a temperature of 550 degrees Celsius for 48 hours to allow the mixture to react and form cuprous phosphide crystals.
In the process, it is only necessary to stabilize the temperature of the vacuum furnace, and no other operations are required.
This is as easy as pie for materials and equipment that have already been intelligently controlled by various computers. Therefore, they have plenty of time to chat and relax during the experiment.
"I heard that Professor Xu from Huaguo has completed the simulation calculation of KL-66 material? Does it mean that it is just a strong magnetic material?"
While drinking coffee, Hornby Eden looked at his colleagues and asked.
Speaking of this, my colleague nodded and said: "Well, the relevant papers have been uploaded to arxiv. Judging from the various data of Professor Xu's simulation calculation paper, I am afraid that the KL-66 material this time is room temperature. There is little hope for superconductors."
"If I remember correctly, that Professor Xu seems to be a mathematician?" Hornby Eden asked after thinking for a while.
Hearing this, colleague Burne Jones smiled and said: "It's true that he is a mathematician, but he is also a top physicist, a top astronomer, a top material scientist and even a top engineer. Teacher, wait."
"Don't forget, the high-temperature copper-carbon-silver composite superconducting material was developed by him himself. I heard that the purpose of his research and development of the high-temperature superconducting material was for controllable nuclear fusion technology."
"Unbelievable, mathematics, physics, astronomy, materials, and controllable nuclear fusion technology, has the cross-field effect lost its effect on him?" Hornby Eden exaggeratedly shook his head and sighed.
"Who knows, this is probably another Newton-Gauss-level evildoer." Burne-Jones said with a smile.
Shrugging, he continued: "To be honest, even without Professor Xu's calculations, I'm actually not very optimistic about this KL-66 material."
"Not to mention whether room temperature superconductivity can be realized so easily, there are 'false news' released on room temperature superconductivity almost every year, and then the stock market cuts a wave of leeks, and the news gradually disappears. Can't be proven, can't be disproved."
"But what's different this year is that before the stock market took off, it was slapped and wiped out by that Professor Xu."
There was nothing wrong with what Burne-Jones said.
If we look at the incidents of room temperature superconducting materials that have occurred every year in history, the related heat will last at least ten days and a half months.
Then during this period, the stock market related to superconducting materials will rise sharply and then fall again.
The capital cut a wave of leeks in it, and even went out to cooperate when necessary, such as getting a copy of the experimental data to prove that this material is very likely to have room temperature superconductivity, and harvested repeatedly.
However, before they could act this year, they were slapped and killed.
Even if the re-enactment experiment is still in progress, no one can be sure whether this KL-66 superconducting material has superconducting properties, but the stock market has no previous gains at all.
There is no way, the reputation of the name 'Xu Chuan' is too great.
Although it is just some speculative calculations, judging from the mathematical ability of this big guy, it is basically impossible for him to have any problems with his calculations.
After all, this is the winner of the Fields Medal, a super fierce man who personally solved two millennium problems.
This also caused the superconducting materials sector, which was supposed to be extremely hot, to be calm like a pool of stagnant water, and even fell slightly.
Xu Chuan didn't pay much attention to these things.
He didn't even know that some capitalists' dreams of cutting leeks were dashed because of what he expressed in class.
At this time, he is in the laboratory, personally testing the superconductivity of the reproduced KL-66 material.
Although from the perspective of material calculations, the probability of KL-66 being a room temperature superconductor is already very small, but Xu Chuan still hopes that it may be true.
After all, for a scholar in the field of materials, it is undoubtedly quite exciting and stimulating to see a path that breaks the existing material research and development system.
Three sets of engraving experiments, according to the complete engraving of the paper, three KL-66 materials were produced.
Among the three materials, one was verified by Xu Chuan himself, and the other two were handed over to two researchers in the field of superconducting materials.
For him, conducting superconducting tests on superconducting materials is a field he is familiar with and can no longer be familiar with.
When looking at a material, whether it is a superconducting material or not, the core indicator is whether it has the 'Meissner effect'. The first thing he did was naturally this.
However, unfortunately, after tossing around several times, Xu Chuan was convinced that the re-engraved KL-66 material he was assigned did not have the Meissner effect.
There is no doubt that the first replica experiment was a failure.
Of course, he did not just give up and deny it directly. In the following time, he successively tested the magnetic field, resistance, critical temperature and other aspects of the synthesized material.
It was finally confirmed that the material in his hand has a certain degree of anti-magnetic properties, but it is quite weak.
As for the resistance, when the temperature was lowered several times before and after the test, it was found that when it was at 250K (about -23°C), the resistivity dropped sharply, but the drop was less than zero.
At 7.1K, the resistance of the material will drop sharply again, and the wireless is close to zero resistance.
This result is basically in line with the test of KL-66 done by the computational material model.
At room temperature, it cannot exhibit superconductivity, and only when the temperature is lowered to 7.1K, it will exhibit superconductivity.
However, this is meaningless. At a temperature of 7.1K, there are many, many materials that can achieve superconducting properties. And in this material, the superconducting critical temperature of lead is -265.95°C (7.2K)
In this case, it is hard not to doubt whether this critical temperature transition is the material itself or the lead inside.
After completing all the tests in accordance with the standards, Xu Chuan took off the experimental gloves on his hands.
Judging from the materials in his hands alone, the hope that the KL-66 material is a room temperature superconductor has been shattered, which also made him sigh.
However, to verify a material, this is not something that can be done in one re-engraving experiment.
There are many accidental factors. If it is necessary to ensure that there is no error in the replica experiment, at least three sets of controls should be done.
After waiting for a while, the other two sets of test results came out.
Judging from the test results, all observations of the Meissner effect have failed.
The three KL-66 materials reproduced according to the standard process do not have the Meissner effect.
However, Xu Chuan was a little surprised that the material numbered "No. 2" showed a semi-levitation effect similar to that of the video from South Korea.
Although subsequent tests confirmed that it was only a type of diamagnetism, it still caught his attention.
If the mechanism of this diamagnetism can be found, there may be some other discoveries.
On the other side, in the laboratory, looking at the test report in his hand, Fan Pengyue smiled and said: "It seems that this time we can give a good slap to those South Korean netizens."
The three groups of materials manufactured by different personnel did not detect the Meissner effect. It can be said that the possibility that this KL-66 material is a room temperature superconductor has been reduced to the extreme.
"Slap in the face? What's the situation?" In the laboratory, another researcher who was doing superconductivity testing, Chaili, asked curiously.
Fan Pengyue smiled and said, "Didn't our boss disclose the results of the simulation calculations before, indicating that this KL-66 material is more likely to be a strong magnetic material rather than a superconductor."
"Then people in South Korea refused to accept it, and expressed their dissatisfaction in various ways."
"It's fine if they swear on the Internet in their own country, but they have come to our country. If you don't believe me, you open the scarf and look at the software. Now there is an article on the Internet."
"There are those who stand against our boss, and those who stand against the other party, and there are many people who eat melons."
"Anyway, the topic of room temperature superconducting materials is very lively now."
Hearing this, Chaili couldn't help frowning and asked: "No, I just want to know, judging from the results of the calculations, what's the objection? Are you still swearing?"
Fan Pengyue smiled and said: "Normal, the old traditions in South Korea are also the old habits there."
"After all, our relationship with South Korea is more 'delicate', and we look down on each other. In addition, some extreme groups there are crazy, can't tolerate sand in their eyes, and like to chase and bite people."
Hearing this, Xu Chuan, who was reading the test report, took a curious look, then took out his mobile phone from his pocket, opened the scarf silently, and searched for topics related to KL-66.
[Axi, what is this bastard talking about! 】
[Must be envious of our room-temperature superconducting materials, jealous so slander? 】
[It’s just a simulated calculation result. We actually conducted a superconducting test. The magnet can be stably suspended on the KL-66 superconducting material. Isn’t this much more powerful than the so-called calculation? 】
【I very much doubt that Professor Xu did this to slander in order to preserve the status of high-temperature superconducting materials in his hands. After all, once our KL-66 comes out, I am afraid no one will buy his materials in the future. 】
Under some popular videos of bibs, you can indeed see some "familiar" words.
However, these words were basically sprayed into a sieve by the Chinese people.
In terms of trolling people, there is probably no netizen from that country whose combat effectiveness can match that of the Chinese.
"Send me the electronic version of the reports of the three replica experiments."
After scanning the trending searches on the bib, Xu Chuan raised his head and said to Fan Pengyue.
On the opposite side, big brother Fan Pengyue smiled and nodded in response.
This time there is another good show to watch.
Although these South Korean netizens who are chasing and spraying have been sprayed into a sieve by Chinese netizens, I have to say that this kind of behavior is really disgusting.
Because of a different opinion, if you go to another country to swear, probably only people from that country can do it.
If it was other scholars, they would probably not pay attention to these news.
But for his boss, if he didn't see it, it's fine. Now that he has seen it, it's not his character not to respond after the result comes out.
Now the results of the re-engraving experiment have come out, which are completely in line with the results of the simulation calculation.
Thinking of the expressions on the faces of those South Koreans who sprayed the Migong on the Internet after seeing the three replica experiment reports, he couldn't help but think about it.
Who do you think is bad for you to spray? Come spray this one.
The most important thing is how many times you have falsified in the field of science, do you not have a count in your heart?
In 2005, the "research results of embryonic stem cells", known as one of the world's three major academic frauds, was purely intentional fabrication.
In 2015, the "biggest fraud case" in academia also occurred in South Korea, and nearly 200 professors were brought to court at that time.
What, how long has it been? It's alright, the scars forget the pain?
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