For Xu Mang's dissatisfaction,

Most people behave differently, some people ignore their love, and a very small number of people hate Xu Mang, of course, most people are in the mood to watch the show, hoping that Xu Mang can fall once.

For this framework, Xu Mang doesn't want to beg for anything too much, today's society is a society full of competition, competition is everywhere, if it is reasonable competition, Xu Mang welcomes it, if it is malicious competition, I'm sorry... Good bye.

however

Reasonable competition or healthy competition is becoming less and less, and vicious competition is full of corners.

Cooperate?

For cooperation, Xu Mang is a little disgusted with cooperation, perhaps because he was injured once.

Afternoon

Xu Mang and Xiaoman returned home, opened the door and saw that his mother was cooking a table of dishes waiting for him, Yang Xiaoman was quick and ran into the kitchen to help get the dishes and chopsticks, this hard-working energy almost moved Xu Mang to cry.

I'll go...

It would be nice if Xiao Man could always be like this.

It's a pity that I'm thinking about fart.

Dinner went smoothly, except for the daily doting on Xiao Man, nothing else happened, Xu Mang was satisfied with this thriving environment, as long as his mother didn't turn against Xiao Man.

night

Quietly came.

Yang Xiaoman lay on Xu Mang's body and said in a voice like a mosquito ant: "Alas... Mom gave me a few boxes of stuff the other day... Anyway, will you use it?"

"What is it?" asked Xu Mang with a confused expression.

"Nasty!"

"It's just... You get the idea. Yang Xiaoman patted Xu Mang's chest, and suddenly made a red handprint, and said in a squeaky voice: "It's just... It's the thing that prevents the birth of new life, the polyurethane that can wrap the alkaline white body. ”

it!

What a science!

After Xu Mang heard Yang Xiaoman's professional terminology, he couldn't help laughing: "How did you come up with that?"

"How?"

"Those disgusting words... How could I possibly say it. Yang Xiaoman glanced at him: "Old lady, I am a lady, is a woman like water good, a gentle representative, the most beautiful girl in the universe." ”

Xu Mang: Embarrassed

Xiao Man's face is also quite thick.

Are you being influenced by yourself?

Xu Mang thought about this question carefully and felt that it was not.

When I saw Xiao Man for the first time, she exuded the aura of not being allowed to enter, which was really exciting, and as a result... In fact, this woman seems to be cold on the outside, but in fact the heart is as hot as a furnace.

"Good!"

"Sleep, sleep, sleep. Xu Mang put his hand into the quilt and said gently: "Staying up late is easy to make this place deflated." ”

"Get out!"

Yang Xiaoman said angrily: "I don't know who is facing it every night... Get your hands off the way, or I'll kill you!"

Xu Mang's face was full of embarrassment, and he lost his mouth and hated it for thousands of years...

Why is the mouth so cheap?

...

The next day,

The two of them came to the laboratory and began to work intensively again.

Still calculating the equation, Yang Xiaoman sat on Xu Mang's lap, enjoying happiness while learning quantum mechanics, she hopes that this kind of life can go on until she is old.

Pity...

Xiao Man's dream hadn't woken up yet, and Xu Mang's side suddenly exploded.

"it!"

"I... I..."Xu Mang looked at the numbers on it, and didn't know what to do for a while.

"What's wrong, what's wrong?" Yang Xiaoman asked nervously, "Did you miscalculate?" The project is going to fail, and we have to pack up and go home?"

"It's not!"

"I actually figured it out!" Xu Mang was excited, and when he saw Xiao Man's handsome face, he couldn't help but kiss it.

(* ̄3(*^▽^*) chirp!)

(*^▽^*) ← over here, too!

(*^▽^*)ε ̄*)Da!

Picking up Xiaoman and putting it aside, Xu Mang looked at the numbers on it, excited and speechless, a very wonderful angle, relying on pure mathematical calculations, plus reasonable inferences, and accurate model simulation.

A little bit.

can change the whole world.

But...

After being excited, Xu Mang fell into embarrassment again, his discovery lacked a critical temperature, but judging from experience, I am afraid that the critical temperature of graphene will break through the sky.

In the following calculations,

Xu Mang came up with an approximate value, above minus 260 degrees.

I'll go!

-260 degrees Celsius... Is this going to fly?

"What's wrong again?" Yang Xiaoman stood on the side, looking at Xu Manchong so happy that he couldn't figure out his thoughts for a while.

"It seems that our graphene will have to be above minus 260 degrees Celsius to have superconductivity. Xu Mang said with a dark face: "It has no practical effect at all." ”

"I don't understand. Yang Xiaoman shook his head and said indifferently: "Anyway, I know that we have succeeded, but it has nothing to do with us whether it is practical or not, it's a big deal... I'll make improvements in the future. ”

Xu Mang nodded helplessly: "What you said makes sense." ”

however

Xu Mang and Yang Xiaoman had an accident in adjusting the angle, strictly speaking, Xu Mang's movements were too big and could not adjust a reasonable angle, fortunately, Yang Xiaoman was violent at the same time, inherited the woman's ingenuity, and completed the adjustment of the angle under the electron microscope.

But...

The process took two hours.

It wasn't until Yang Xiaoman finished his work that Xu Mang found that there was a machine to operate.

Belch...

Assume you didn't see it!

"Okay!" Yang Xiaoman wiped the man on his forehead and said angrily: "Then it's useless!"

“...”

"Okay?" Xu Mang hurriedly asked, "What is the state under the electron microscope? Is the crystal lattice of the two layers correct?"

"Nonsense!"

"Mother, I'm sharp-eyed!" Yang Xiaoman said.

Xu Mang glanced at the picture on the display screen, it was indeed as he imagined, and he had to sigh that Xiao Man still had advantages, he really couldn't do this kind of work, and his hands would shake when he lit the lighter... Very angry.

"Hey!"

"I have time to see a doctor. Yang Xiaoman said: "I found that when you perform subtle operations, your hands will tremble... This may be a symptom of the early stages of Parkinson's. ”

"Cut!"

"I'm in great health. Xu Mang said with a disdainful face: "You know best." ”

Words fall,

Xiao Man glared at Xu Mang, and said with a displeased face: "Idiot!"

Xu Mang didn't want to know too much about whether he had any early Parkinson's symptoms, so as not to be forced to be hospitalized, so Xu Mang put two pieces of graphene into the experimental equipment, which he had seen others use when he was at Fuda and knew how to operate it.

"Will it work?"

"I don't know..."

In an office,

Several intern researchers were chatting, to be precise, talking about Xu Mang.

"What do you think Professor Xu... Will it succeed?"

"How is that possible... It's not that you don't know how difficult it is, and how many professors from famous schools have been found to come over, but the results are helpless, I don't believe that Professor Xu alone can play any role. ”

"I think so too... So many people can't help it, can Professor Xu come?"

"I think..."

Then

A female student in the office said: "Think about why Director Cao made such an announcement, if it weren't for Professor Xu's breakthrough, Director Cao would be such a utilitarian person would do such a thing?"

“...”

“...”

“...”

Several people were silent, according to Director Cao's personality, this is indeed the case.

Don't...

What is the latest development of Professor Xu?

Impossible, right?

Is Professor Xu really so amazing?

soon

The matter between Xu Mang and graphene spread throughout the institute, and at noon, many people did not see Xu Mang and his girlfriend appear, and this rumor became a bit excessive.

soon

These rumors reached the ears of Wang Xiong and Cao Junhui.

In the face of this rumor, the two are also very helpless, but the more this time, the more they can't control it, otherwise things will get worse.

"Ugh..."

"I don't know what happened to Professor Xu. Wang Xiong sat in Cao Junhui's office and said helplessly: "I can't see him at noon, and now the whole research institute is paying attention to him, but he didn't show up and locked himself in the laboratory." ”

"Maybe that's the only way to succeed. Cao Junhui smiled: "Focused attitude." ”

...

meanwhile

In the laboratory.

Xu Mang and Yang Xiaoman kept adjusting the temperature to the limit, and at this time it had reached 4K, that is, minus minus 269.15 degrees.

"Hey!"

"It's about to reach its limit. Yang Xiaoman said worriedly: "Will this equipment explode?"

"Crazy, huh?"

"How could this machine explode. Xu Mang said: "It will drop another 0.1K." ”

When the temperature keeps dropping,

Xu Mang's expression gradually became cold, his eyes were fixed on the data on the display, and his fingers were continuously changing the concentration of carriers in graphene.

According to common sense,

However, in the process of continuous change, Xu Mang found that in the NS region, if it is filled, the conductivity is zero, that is, the insulation is generated, and the NS/2 region is filled, and another insulation appears.

This happens to be an insulator that does not conform to the band theory, that is, the Mott insulator.

Mott insulators are the parent materials of high-temperature superconducting materials.

Seemingly...

It shouldn't be a big problem, it may be that the temperature is not enough.

"Hey!"

"Do you want to go down?" Yang Xiaoman asked.

"Go on!" Xu Mang shouted.

As the temperature continues to drop,

Xu Mang observed that in the electronic phase diagram, the SC region gradually took on a superconducting parabolic shape, which was not very obvious, but had a rough prototype, which was almost the same as the electronic phase diagram of a high-temperature superconductor.

"Hey!"

"It's all 2K!" Yang Xiaoman said with a scared face: "Will it really explode?"

"No!"

"Keep coming!" Xu Mang said with a resolute face, he was about to see the dawn of hope.

Helpless

Yang Xiaoman can only obey Xu Mang, and he will be a pair of outlaw mandarin ducks when he explodes anyway.

When the temperature dropped to 1.7K, Xu Mang suddenly shouted to stop.

At this point,

Xu Mang saw a few graphics that were simply so beautiful that they exploded.

"It's amazing!"

"I'm so awesome!" Xu Mang was constantly manipulating the carrier concentration, but his eyes were looking at the monitor.

Analyze from the data,

The superconductivity of bilayer graphene with superconducting properties is affected by temperature, and when the applied magnetic field is 8T, the Mott insulation state disappears, thus returning to metal conductivity, that is, the superconductivity of bilayer graphene with superconducting properties is affected by the magnetic field.

The physical phenomenon of high-temperature superconductivity is simulated...

Because Mott insulators are affected by temperature, they will also return to their metallic form, and when the magnetic field is 4T, they will regain their conductivity.

It worked...

But

How does this work?

Why can twisted double-layer graphene matter achieve superconductivity?

What's really going on inside it?

In the face of these mysteries,

Xu Mang plans to find out.

......