Chapter 176 Oh, this is a paper I posted during my internship
In terms of computing speed alone, every server Ning Chen purchases is no less than the mainframe of Ning Chen’s desktop computer.
Because this kind of modeled task is a multi-threaded processing task, the more CPU cores involved in the work, the more help it will have in the calculation of the task.
In just one night, Ning Chen obtained several very valuable prediction models, which may help him synthesize an iron-based superconductor with a higher superconducting critical temperature, or construct a new iron-based superconductor system.
"Xiao Zhi, if you are always so efficient, then the equipment and electricity bills I paid will be worth it."
Of course, Xiaozhi's modeling processing ability is only F level now. According to Xiaozhi's rules, the upper limit of Xiaozhi's single ability should be equal to the upper limit of Xiaozhi's level.
In other words, Xiaozhi is now an artificial intelligence with a system rating of D level. Its various abilities can reach D level after sufficient training.
By that time, Xiaozhi will also have more powerful and accurate data modeling capabilities.
The next day, Ning Chen came to the laboratory early and continued to improve his model and plan subsequent experimental work.
After a while, Xu Zhou also arrived. When he saw Ning Chen, he said excitedly:
"Ning Chen, when did you publish another "Cell" article? I asked you why you suddenly subscribed to the journal "Cell" before. It turns out that you secretly published another paper on it!"
"Well, when I was studying at Yan University, I went to the laboratory for a period of internship, and then... I made some results and submitted a paper."
Xu Zhouxin said, Ning Chen It seems that I have heard almost the same words before.
"No, Ning Chen, I can understand studying physics and chemistry, but studying biology is a bit confusing, right? This has nothing to do with mathematics and materials science?" Xu Zhou asked.
"Teacher Xu, it is too hasty to make such a conclusion. Before the birth of biometallurgy technology, no one connected the two disciplines of biology and metallurgy, right?"
Listening to Ning Chen's words, Xu Zhou also looked thoughtful.
“I heard something said by a senior in the Department of Biology of Yanda University before, and I thought it was quite interesting. He said: Mathematics is a fire, lighting up the lamp of physics; physics is a lamp, lighting up the path of chemistry; chemistry is It is a road that leads to the pit of biology; biology is a pit that buries all science students.” Why is chemistry the pit leading to biology?”
“I’m not sure, but he studied chemistry for his undergraduate and master’s degrees, and then switched to biology for his PhD.”
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Hearing what Ning Chen said, Xu Zhou also thought of the "four major tiankeng majors" and instantly understood the student's mood.
"Although the latter view is somewhat negative, it still shows that there are still very close connections between these different science subjects. In the future, maybe we can study something called 'biomaterials' Of course, even if you can't do it in a new direction, learning more knowledge always has more advantages than disadvantages."
"Ning Chen, what you said does make sense, but this method is only suitable for you. He is a person with strong learning ability and extremely high energy. For other students, it is difficult enough to understand a major, and there is no time to take care of other subjects. ”
Ning Chen. He also knew that Xu Zhou's point of view was correct, and Ning Chen would not casually recommend his own learning method to others.
"By the way, Ning Chen, what's the progress of your previous experiments on double-layer FeSe thin films and substrate replacement?" Xu Zhou asked.
"The results of the test are basically consistent with my previous predictions. After plating two atomic layers of FeSe film, the material lost complete conductivity. And after replacing other substrates, the material also no longer conducts electricity. It is completely conductive.”
The occurrence of such a result is not that Ning Chen’s experiment failed, but it further confirms the correctness of Ning Chen’s previous theory.
"Ning Chen, what do you think this result can mean?"
"In fact, the iron-based superconductor formed by this FeSe single atomic layer thin film coating substrate mode is similar to The previous systems of various iron-based superconductors were different. The reason why this material has the characteristics of a superconductor is that the combination of the SrTiO3 substrate and the FeSe single-atom layer film helps in terms of carrier and electron-phonon coupling. The realization of superconductivity..."
Ning Chen explained the principles to Xu Zhou from a fundamental theoretical perspective.
After listening to Ning Chen's explanation, Xu Zhou also understood what Ning Chen was thinking. "In other words, your model of FeSe single atomic layer film plus substrate is not like the previous superconductors, which can be replaced regularly with similar structures?"
< br>"Yes, whether it is increasing the number of layers of the film or replacing a similar substrate structure, these methods are not effective. But we can go back to the original starting point and design materials directly from the atomic layer and interface, the same There is a chance to discover some new superconductors.”
“I probably understand it. It’s an amazing theory. Ning Chen, I think you are already a leader in the world of superconductivity.”
When Ning Chen heard this, he quickly waved his hands and said:
"Mr. Xu, please don't flatter me. I admit that I have made some achievements in the field of iron-based superconductivity, but looking at the entire field of superconductivity, my research content is only a drop in the ocean."
However, Ning Chen also secretly made up his mind that after his research on iron-based superconductivity reaches a certain level, he will continue to expand his research direction instead of just limiting himself to this research field.
"Okay, then you should continue your research and make yourself truly the leader of the world's superconducting community. Get the Nobel Prize early, and then I can brag to others that I won the Nobel Prize. The Nobel Prize winner is my student.”
“Teacher Xu, you don’t have to put your hopes in me, you also have a chance to win the Nobel Prize,” Ning Chen said with a smile.
After chatting with Xu Zhou for a while, Ning Chen continued his design work on new iron-based superconductors.
After some careful analysis and calculations, Ning Chen constructed a new type of "1144" iron-based superconductor.
The idea of this structure is very subversive, but Ning Chen believes that this new type of material is also possible to achieve complete conductivity based on the experimental data and experimental theories he has summarized before. .
The first two "1" here represent 1 Ca atom and 1 alkali metal atom respectively.
The last two "4"s represent an atomic film layer composed of 4 Fe atoms and 4 As atoms.
The Ca atomic layer and the alkali metal atomic layer are on both sides of the FeAs atomic thin film layer.
Theoretically, complete conductivity of the substance can be achieved by inducing two different Fe-As bond distances on the Ca layer side and the alkali metal layer side.
The model constructed by Ning Chen is not a complete copy of the models Xiaozhi constructed yesterday, but an improvement based on Xiaozhi's model.
Ning Chen felt that with Xiaozhi’s current abilities, apart from being better than him in computing power and search speed, other abilities might not be comparable to his.
The model constructed by Xiaozhi only brings a certain reference value to Ning Chen and cannot be used blindly.
After returning home at night, Ning Chen copied the latest model he designed into the computer and asked Xiaozhi to evaluate the complete conductivity of the model.
Xiaozhi's evaluation of Ning Chen's model is pretty good. The probability of having superconducting properties is over 70%. However, no specific estimated data is given on the critical temperature of superconducting.
After reading Xiaozhi’s evaluation of the superconducting properties of this substance, Ning Chen couldn’t help but murmur in his heart.
“This is a bit strange... In the past, for substances with lower superconducting properties than this, Xiaozhi would also give a prediction of the superconducting critical temperature. Why this time, there is no specific temperature prediction. ?”
Ning Chen felt that this might be because Xiaozhi’s modeling ability was not mature enough, so he didn’t think much about it.
The next day, Ning Chen came to the laboratory and made preparations for the experiment.
Because the iron-based superconductor Ning Chen wants to prepare this time contains As element, and As element contains a certain degree of toxicity, especially compounds containing As are more toxic. Therefore, before the experiment, Ning Chen carried out protective work on the experiment. Very cautious.
Ning Chen started the experiment after wearing a more rigorous lab coat and other protective equipment than before to ensure that the experiment was foolproof.
At the beginning, Ning Chen still used MBE equipment to create FeAs single atomic layers.
(End of this chapter)