Hearing Senior Brother Fan's inquiry, Xu Chuan smiled and replied.

"The research and development of superconducting materials, there is nothing promising or unpromising, everyone is currently groping."

"I chose copper-carbon-silver composites because the mathematical model we made in our lab can help them to a certain extent."

Hearing this, Fan Pengyue nodded and said, "This is okay, according to your explanation, some parameter information of these materials has been entered in."

Xu Chuan said with a smile: "Yes, there are two tasks on the research side, one is to collect and purchase some data on high-temperature superconducting materials, there is no need to be too urgent in this regard, and there is no need to force it, it is best to collect it." It doesn't matter if you can't collect it."

"The main task is to conduct experiments on copper-carbon-silver composites, and each formal researcher can be arranged to bring two deputies to start experiments with low-temperature superconducting materials, and then develop towards high-temperature superconducting materials, and record data for each experiment."

Fan Pengyue nodded, got up and took out a notebook from the desk, recorded Xu Chuan's requirements and asked:

"Are there any other requirements? Is it just a low-temperature and high-temperature route, or is it also filled with high-pressure routes?"

[In view of the general environment,

At present, there are two main paths for the industry and materials to explore superconducting materials.

"Ultra-low temperature" and "ultra-high pressure".

In fact, the so-called room-temperature superconductivity is not absent at present.

Professor Langa Dias of the University of Rochester, one of the Ivy League schools in the United States, once set a new record for the critical temperature of superconductors with a carbon-containing hydrogen sulfide system.

His team used a research device for testing trace materials at very high pressures, a diamond anvil, or prepared a special carbon-containing hydrogen sulfide system to form superconducting compounds at extreme high pressures.

As the pressure of this superconducting compound increases, the transition temperature of the superconductivity becomes higher and higher.

At pressures of 267±10 gigapascals, about 2.6 million times the atmospheric pressure at sea level, the material is capable of superconducting at room temperature.

But to be honest, this is just a data study material, and it has no practical significance.

After all, it is very difficult to create a pressure environment of 10,000 atmospheres on a large scale, so the use of ultra-low temperature is the only means to commercialize the superconductivity phenomenon at this stage.

However, since Xu Chuan proposed to conduct superconductivity experiments, he naturally had to ask whether only temperature superconductivity should be carried out or pressure superconductivity should also be carried out.

After all, high-pressure superconductivity experiments can also bring certain data experience, which is helpful for subsequent research.

Xu Chuan: "No, if you can exchange or buy some foundations for ultra-high voltage superconductivity experiments with other laboratories, you don't have to do it yourself."

"In addition, another group of people can be arranged to do an analysis of the low-temperature and high-temperature superconducting materials currently in the world."

"You don't have to be a researcher to do this, PhD students and interns are fine."

"Mainly analyze the electronic structure, electron interaction, band structure and other aspects of the material, which can provide a certain basis for our own research in the future."

Xu Chuan doesn't know if the road of ultra-high pressure superconducting materials will work.

But anyway, when he developed superconducting materials in his last life, he did not take this path, he took the route of ultra-low temperature to low temperature and then to room temperature.

This route is easier than that of ultra-high-pressure superconducting materials, and it is also the mainstream route of superconducting material research and development.

Although he can directly prepare copper-carbon-silver composite superconducting materials, it is clear that this is not scientific.

At present, it is better to do some related experiments honestly, accumulate some data, and then take out the superconducting materials.

Otherwise, there is no experimental data at all, and it goes straight to the copper-carbon-silver composite superconducting material, which is completely inconsistent with the research and development of materials.

The last time he studied

When the artificial SEI film is issued, it can be regarded as a single knife straight in.

Again, it is still a more important superconducting material, and it is estimated that I am afraid that the intermittent or ill-intentioned people around him will be directly piled up at that time.

For the sake of safety, it is better to follow the regular steps of material research and development little by little, so as not to add too much burden to the country.

Moreover, there is no need to take out the superconducting materials at room temperature directly, and the superconducting materials used in the controllable nuclear fusion reactor this time are enough for high-temperature superconductivity.

The so-called high-temperature superconductivity does not actually refer to superconductivity under high-temperature conditions of hundreds or thousands as most people think. However, on the basis of the superconducting materials previously studied using liquid helium, the temperature is much higher.

In general, the temperature of high-temperature superconductivity usually refers to materials that are superconducting at a temperature of 77 K (about 196 to 150 years ago) in liquid nitrogen.

Some people may think that it is close to minus 200 degrees, how can this be called high-temperature superconductivity.

But the fact is that in the era of liquid helium superconductivity, people often have to reduce the temperature of low-temperature superconducting materials to minus 270 degrees.

The temperature of high-temperature superconductivity has increased by nearly 70 to 130 degrees, and in contrast, when the phenomenon of high-temperature superconductivity was discovered at that time, it was naturally called an increase in temperature.

At present, the research of high-temperature superconducting materials is still the most cutting-edge field in laboratories in various countries, mainly focusing on copper-based superconductors and iron-based superconductors, and there is no large-scale application for the time being.

Therefore, Xu Chuan plans to sell the high-temperature superconductivity of copper-carbon-silver composite materials after completing them to make a lot of money.

For him, this kind of thing is not earned in vain.

At present, there are very few high-temperature superconducting materials on the market that can be practically applied, even if it is a large-scale strong particle collider, for the time being, it is still a low-temperature superconducting material, which is frozen with liquid helium.

If it is replaced with high-temperature superconductivity, the cost can be reduced by hundreds or even thousands of times if liquid nitrogen is also used for freezing.

The simplest is the different prices of liquid helium and liquid nitrogen.

If liquid helium is 1,000 yuan a ton, then liquid nitrogen is a dollar a ton, such a big gap is enough for high-temperature superconductivity to be widely used in some fields that could not be used.

This is a relatively blank area, but the market is just as huge.

The laboratory also wants to make money, and Xu Chuan has a big plan in his heart, which needs countless funds to support.

Therefore, if you can get a little more wool from those Western countries, you can get a little more.

......

"In other words, did you personally participate in the research and development of superconducting materials and carbon-based materials?"

In the office, after remembering Xu Chuan's request, Fan Pengyue asked curiously.

This is very important to him or to the institute as a whole, and the participation of one more Nobel laureate will definitely lead to an exponential increase in scientific research.

And he also wanted to judge from this point whether this little junior brother had a whim, wanted to study these two materials, or was already certain in his certainty.

If he personally participates in the research and development, there is a high probability that he already has a little bottom in his heart. If he doesn't participate, it may be that he wants to do some data accumulation and paving for the institute.

The two different paths cost different scientific research funds, and he has to control this aspect.

Xu Chuan thought for a while and said, "I won't participate in the preliminary research, after you have accumulated some experimental data, send the data to me first, I will study it first, and then I will participate in the experiment."

Fan Pengyue nodded and said, "That's fine, if there are no other requirements, then follow this plan."

"But at the moment, there is still a lack of equipment to procure to study these things. Among other things, spin-resolved angle-resolved photoelectron spectrometers are a must-have, as well as ion-doping equipment."

Xu Chuan: "Well, you can make a list of these things for me, in terms of scientific research equipment, you can't be frugal, you can buy what you should buy."

Scientific research equipment

and researchers are one of the two keys in the scientific research process.

Just like the spin-resolved angle-resolved photoelectron spectrometer, the top-performance one costs tens of millions, but without this thing, it is impossible to study the superconductivity mechanism.

The process of measuring data is like fishing.

In this process, the angle-resolved photoelectron spectroscopy instrument is like a "fishing rod", the light source is the "fishing line" and "fish hook", the measured superconducting sample is the "fish pond", and the electrons are the "small fish".

If you want to know what kind of "fish" is in the "pond", you can "catch" it and look at it.

With the advanced angle-resolved photoelectron spectrometer, the electronic structure of superconducting materials can be known, which is an important part of the study of superconductivity mechanism.

.......

After arranging the task of the Chuanhai Materials Research Institute, Xu Chuan returned to NTU.

As soon as he returned to NTU, someone came to his door.

"Yo, Professor Zhou, why do you have time to come to my side?"

Xu Chuan got up with a smile, greeted the middle-aged man in front of him, and then looked at the student behind him to say hello.

The person who came was Professor Zhou Hai from the School of Mathematics, who could be regarded as half of his teacher. In the past, when he was an undergraduate, because of the relationship between Chen Zhengping and Chen Zhengping, there was no tutor in mathematics.

But Zhou Hai taught him a lot of things and laid a lot of foundation for him on the road of mathematics.

Zhou Hai smiled and joked: "The big professor of our school, the winner of the Nobel Prize + Philippine Prize, has he not often come over to hang out and make a familiar face?"

Xu Chuan smiled and rubbed his hands and said, "Just spare me."

Zhou Hai shook his head with a smile and said, "Let's get down to business, I want to ask you if you have any plans to recruit students next year?"

Xu Chuan thought for a moment and said, "I don't know for the time being, Professor Zhou wants to recommend students to me?"

Zhou Hai nodded and said, "Well, I really want to recommend it to you."

As he spoke, he kicked the student behind him and scolded, "What are you doing standing behind?"

Behind him, a young man stood up slightly embarrassed and greeted Xu Chuan: "Professor Xu, long time no see."

Xu Chuan looked at it twice, feeling a little familiar, and suddenly reacted, and said with a smile, "Senior Brother Cai, I haven't seen you for a long time."

Hearing this, Cai Peng waved his hand nervously and said, "Call me Xiao Cai, senior brother really can't afford it."

Xu Chuan smiled, and on the other side, Zhou Hai then smiled:

"Cai Peng, the student who followed me for a Ph.D. before, when you were still an undergraduate, the one who caused the second opening of the graduation thesis because of the eyl-berry conjecture."

"But thanks to your interruption, this kid seems to have opened up in the past two years, and he has studied mathematics a lot, and he has already received a notice from Princeton."

"It's just that this kid doesn't seem to want to go abroad very much, so I want to ask you to see if you can accept students next year, and if you can, I want to study with you for further study."

"Of course, if you don't have a plan for next year, just let him go to Princeton honestly."

........

PS: One shift is delivered, and there are two shifts at night, asking for a monthly pass