Chapter 373

Cao Junhui, the head of the Research Institute, came to see the situation at first. As a result, he saw such a heartbreaking picture. What is the situation of these two people? Does research need to be so grandiose?

“？？？”

“？？？”

Sleeping trough!

Who is it?

Xu Mang and Yang Xiaoman look at the middle-aged man standing at the door, dissatisfied with his appearance for no reason.

"I'm Cao Junhui, the director of this research institute." Cao Junhui said helplessly: "Professor Xu... Researcher Yang... Yang, can you separate for a while? I know you're lovers, but... Right? "

Ouch!

This NIMA... What a shame!

When Yang Xiaoman heard Cao Junhui's words, he immediately blushed with a burst of red glow. He quickly grew up from Xu Mang's thigh and said with shame, "director Cao... This... Is not what you see. In fact, Xu mang is teaching me quantum mechanics."

"..."

teach you quantum mechanics?

You don't have to sit on someone else's lap, do you?

Cao Junhui is helpless, but because the other side is Yang Jian's daughter, he can only smile: "study well, learn well."

As a result,

Cao Junhui walked to Xu Mang, looked at the monitor curiously and asked, "Professor Xu, what are you doing?"

"Calculate whether the Fermi velocity changes when the two layers of graphene rotate." "We've almost found a way to superconduct graphene, but... I don't think it's useful," Xu said seriously

Got it?

Can't you?

This...

Cao Junhui looked at Xu Mang in surprise and asked in a hurry: "Professor Xu, are you sure you found it?"

"Well!"

"It should be found." Xu mang nodded: "but don't be too happy. Even if you find the superconductivity property of graphene, it doesn't work in theory... Just like a chicken in a pot realizing superconductivity, it only brings about changes in thinking, not in technology."

Cao Junhui knows Xu Mang's meaning. It is estimated that the conditions are too harsh to be applied. However, it can change the thinking of research and even change the future changes in this field.

However...

at present, Xu mang has not completed superconductivity, so all this is still unknown.

"Professor Xu?"

"How do you achieve superconductivity?" Cao Junhui asked.

"Rotation angle."

"We found a paper that predicted that when two layers of graphene rotate, a certain angle will lead to new electron interactions." "We studied the paper carefully and found that the physicist's prediction was true," Xu said

As a result,

Xu mang showed his latest research results.

"Look, director Cao!"

"Each carbon atom in a single-layer graphene has four valence electrons, three of which are hybridized by a mixture of S and p orbitals and bonded to other carbon atoms. The remaining electrons move in the vertical orbits of graphene."

"If the double layers are superimposed and the angle is twisted, a phenomenon will occur, that is, the hybrid effect of the energy band of the Dirac cone, and the energy gap on the Dirac cone will appear, so that the Fermi velocity at the Dirac point is renormalized."

After saying that,

Xu mang laughed awkwardly: "this is what we imagined."

"..."

"how do you associate so much?" Cao Junhui asked.

"Model simulation." Xu mang said with a smile: "imagination is important, but there is no model simulation directly. We used the quantum database to simulate the model. We found that when two layers of graphene are superimposed and rotated, there will be a magical pattern of molars, a kind of light and dark ripple."

"Moore pattern is easy to understand. The superposition of two identical geometric patterns will produce such a pattern. However, the appearance of Moore pattern leads to one situation, that is, extended cell." "Not only that, because of the superposition state, the upper and lower carbon atoms are completely aligned to form AA arrangement; the upper and lower carbon atoms are staggered to form AB or Ba arrangement," Xu continued

"In this way..."

"the peaks and troughs of the density of states of electrons are formed."

As a result,

Xu opened the model diagram and pointed to the model above: "this is the model."

Cao Junhui looked at the model carefully. Through Xu Mang's explanation, he really found some clues. This is not the theoretical data, but the real can be seen.

Before that,

seems to have gone to a misunderstanding, has been wandering in the mode of double-layer graphene with calcium atoms, leading to no progress in the research progress.

As a result, Professor Xu's arrival seems to have opened up this embarrassing situation.

Although it's all theoretical or model data, it's also a kind of progress."Is there any other data?" Cao Junhui asked.

"..."

"no more." Xu shook his head blankly and said helplessly: "to tell you the truth, I don't have much confidence. Although there is possibility in theory, but... Who knows in reality."

Cao Junhui nodded and understood his progress and said, "Professor Xu? How long can we test the superconductivity of graphene? At the present rate. "

"Before the lab closes." Xu said.

"..."

Cao Junhui doesn't know if he is complaining, but he seems to be complaining. Maybe he is too thoughtful.

After a few more simple exchanges, Cao Junhui left the laboratory.

"Hello

"Are you stupid?" Yang Xiaoman glared at Xu Mang: "what is it before the laboratory is closed? What do you make people think? You are too ambitious. You are Professor Xu. Why are you so depressed? "

"Ah?"

"I... I'm telling the truth." Xu mang said with a confused face: "it is true that the experiment can be carried out before the laboratory is closed."

"You

"Big idiot!" Yang Xiaoman sighed and said: "I can't imagine how miserable your life is without my future. I'm afraid it's not killed by people if you don't have my future."

What is this...

what is that?

Be reasonable, life is just colorful without you.

However, since I knew you, my life was so miserable that I had to be scolded and beaten...

at this time,

at this time,

Yang Xiaoman slowly broke off Xu Mang's hand, sat down on his lap, and his body fell into his arms. He said shyly, "hurry up... I'm now your student, Professor Xu's class is faster!"

I...

you...

NIMA!

Is this crazy?

Xu mang heard Xiaoman's words, his hair is numb, good guy... If this woman is ready to go to heaven.

"Ah, ah, ah!"

"What's wrong with you?" Xu mang black face said: "I and your partner, originally is doomed, anytime and anywhere to prison, good guy... You this is another three years in prison."

Yang Xiaoman Du Du mouth, angrily said: "not for you."

Hold Xiaoman, put aside, Xu blankly said with justice: "please go away!"

Yang Xiaoman: (~ ~)

idiot!

Stupid!

There is no tacit understanding between lovers at all.

...

Cao Junhui went back to the office and thought about it for a long time. He picked up the phone and called Wang Xiong.

Soon,

Wang Xiong came to the office and said to Cao Junhui, "what's the matter, old Cao?"

"..."

"I went to see Xu mang just now, and I decided not to terminate the graphene project." Cao Junhui said solemnly: "the research funds will continue to increase."

What?

Not only does it not terminate, but also increases funding?

Wang Xiong was confused and asked curiously, "what's your situation, old Cao? Didn't the graphene project end? Why did you suddenly decide not to stop now? In the middle of the speech,

Wang Xiong suddenly reacted and looked at Cao Junhui in horror.

"Xu..."

"did Xu mang succeed?" Wang Xiong said in surprise.

"No!"

"But the pace is frightening." Cao Junhui said: "in theory and model data, both support Xu Mang's point of view, at present he is calculating... Anyway, we can almost know the result these days."

So fast?

He... He's only two days?

"What did he do?" Wang Xiong asked.

"Xu mang found a paper and studied it based on it." Cao Junhui said: "it seems to be to change the angle of superposition state of double-layer graphene, how many degrees in the end, I don't know, this is not... He is calculating."

Wang Xiong naturally understood Xu Mang's strong position, otherwise he would not have found him, but he never thought that there would be a result so soon.

When double graphene layers are stacked together and rotated up and down at an angle, superconductivity can be realized?

Is that too simple?

"I'm afraid..."

"it's not as easy as we think." "There should be a very strict additional condition. According to past experience, it must be more than two Baidu below zero to realize superconductivity," Wang said

"But in any case, if we can achieve superconductivity by changing the angle, it will greatly promote the field of condensed matter physics." "There may be an earthquake like chain reaction," Wang said seriouslyCao Junhui nodded: "I now make an announcement to cancel the plan to terminate graphene."

Soon, many people in

the announcement that the termination of the graphene project was cancelled, the reason was not known, but it was certain that the project was alive again.

Faced with this situation,

quite a lot of researchers are very dissatisfied. Originally, many projects are waiting for money. The termination of graphene project can save money to invest in other projects. As a result, this project has revived again.

Be reasonable,

this project has not progressed for a long time, is it necessary to carry on?

However,

some people say that because Xu Mang's arrival has changed the current situation, director Cao Junhui has to sell face.

Gradually,

some people became disgusted with Xu mang.

At this point, Xu Mang and Yang Xiaoman felt it when they had lunch.

"Ah?"

"What's the situation?" Yang Xiaoman asked curiously, "why do some people feel indifferent?"

"I don't know." Xu shook his head blankly and said indifferently, "whatever they do, I just need to do my own thing well, and do what they like."

"Can't be..." Yang Xiaoman lowered his voice line and said in a low voice: "are you blocking the way of others? Originally, the graphene project was about to be terminated. As a result, Cao came over in the morning and saw your latest achievements, so he cancelled the termination when he went back. As a result, other people's projects were stuck indefinitely. "

Not to mention,

Xu mang thinks Xiaoman is quite right. As long as there are people, there will be rivers and lakes, and there will be competition.

All of a sudden,

Xu mang felt that he was under great pressure. In case all his theories failed, he could not imagine what kind of situation it would be.

......

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