Chapter 374

For Xu Mang's dissatisfaction,

most people's performance is different. Some people are indifferent to him, while a very small number of people hate Xu mang. Of course, most of them are in the mood of watching the opera, hoping that Xu mang can fall down once.

For this framework, Xu doesn't want to beg for more. Today's society is a society full of competition. Competition is everywhere. If it is reasonable competition, Xu is welcome. If it is malicious competition, I'm sorry... Goodbye.

However,

rational competition or benign competition is becoming less and less, and vicious competition is full of corners.

Cooperation?

As for cooperation, Xu has some aversion to cooperation, perhaps because he was hurt once.

In the afternoon,

when Xu Mang and Xiaoman returned home, they opened the door and saw their mother cooking a table of dishes waiting for themselves. Yang Xiaoman was quick eyed and ran into the kitchen to help with the dishes and chopsticks. This hard-working spirit almost moved Xu mang to tears.

I'll go...

If only man could do this all the time.

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

The dinner was very smooth. Apart from his daily doting on Xiaoman, nothing else happened. Xu was satisfied with the booming environment, as long as his mother didn't turn against Xiaoman.

The night,

came quietly.

Yang Xiaoman was lying on Xu Mang's body, and his voice was like a mosquito and ant: "Alas... My mother gave me some boxes of things a few days ago... Can you use them?"

"What?" Xu asked with a confused face.

"Disgusting!"

"Just... You know." Yang Xiaoman patted Xu Mang's chest, and immediately took a red handprint. He said with a squeaky voice, "it's the thing that prevents the birth of new life. It's polyurethane that can wrap alkaline white body."

Sleeping trough!

What a wonderful science!

After hearing Yang Xiaoman's professional terms, Xu mang couldn't help laughing: "how did you think of it?"

"What?"

"Those disgusting words... How can I say them?" Yang Xiaoman white one eye: "I am a lady, like the water of the woman, good, gentle representative, the most beautiful girl in the universe."

Xu Mang: Xiaoman is also very thick skinned.

Have you been influenced by yourself?

Xu mang thought about this question carefully and thought it was not.

When I saw Xiaoman for the first time, she was really excited by the smell of no entry. As a result, the woman looked like a cold exterior, but in fact, her heart was as hot as a stove.

"Good!"

"Sleep, sleep." Xu mang put his hand into the bed and said gently, "staying up late makes it easy to get shrunken here."

"Go away!"

Yang Xiaoman said angrily: "I don't know who is facing... Every night, take your hand away, or I'll kill you!"

Xu Mang's face is full of embarrassment, a slip of mouth into eternal hatred...

why is his mouth so cheap?

...

the next day,

the two came to the laboratory and began to work hard again.

Still calculating equations, Yang Xiaoman sat on Xu Mang's lap, enjoying happiness while learning quantum mechanics. She hoped that such a life would continue until the end of time.

Unfortunately...

Xiaoman's dream has not yet woken up, Xu Mang's side suddenly exploded.

"Lying trough!"

"I... I..." Xu mang looked at the number above, for a time did not know what to do.

"What's the matter?" Yang Xiaoman asked nervously, "are you wrong? Is the project about to fail? Are we going to pack up and go home? "

"No!"

"I figured it out!" Xu mang excited, see Xiaoman's beautiful face, can't help but kiss.

(* ￣ 3 (* ^ ▽ ^ *) chirp!

(* ^ ▽ ^ *) ← this way too!

(* ^ ▽^ *) ε ￣ *) Da!

Holding Xiaoman aside, Xu mang looks at the numbers above. He is so excited that he can't speak. From a very wonderful angle, he relies on pure mathematical calculation, reasonable inference and precise model simulation.

One point one.

It can change the whole world.

However...

excited, Xu mang is in a dilemma again. His discovery lacks the critical temperature, but judging from experience, he is afraid that the critical temperature of graphene will break through the sky.

In the later calculation,

Xu mang got a approximate value, which is more than 260 degrees below zero.

I'll go!

Two hundred and sixty degrees below zero... Is this going to fly?

"What happened?" Yang Xiaoman standing on the edge, looking at Xu Mangchong happy to unhappy, for a time can not understand his idea."Our graphene seems to have to be above minus 260 degrees to have superconductivity." Xu said with a black face: "there is no practical effect at all."

"I don't understand." Yang Xiaoman shook his head and said calmly, "anyway, I know that we have succeeded. It's not practical. It has nothing to do with us. It's a big deal. We can improve it slowly in the future."

Xu mang nods helplessly: "what you say is reasonable."

However,

Xu Mang and Yang Xiaoman had an accident in adjusting the angle. Strictly speaking, Xu Mang's action was too big to adjust a reasonable angle. Fortunately, Yang Xiaoman inherited the dexterity of women and completed the angle adjustment under the electron microscope.

However...

the process took two hours.

It was not until Yang Xiaoman finished his work that Xu mang found that there was a machine that could be operated.

Er...

just don't see it!

"All right Yang Xiaoman wiped the Han on his forehead and said angrily, "that's useless!"

"..."

"OK?" Xu mang asked in a hurry: "what kind of state is it under the electron microscope? Is the lattice of the two layers correct? "

"Nonsense!"

"My eyes are bright, my mother!" Yang Xiaoman said.

Xu mang looked at the picture on the screen. As he had imagined, he had to sigh that Xiaoman still had advantages. He could not do this kind of work by himself. His hands would shake when he lit the lighter. He was very angry.

"Hello

"See a doctor when you have time." "I found that your hands shake when you perform subtle manipulation... This may be the initial symptom of Parkinson's disease," Yang said

"Cut!"

"I'm in great health." Xu blankly disdains ground to say: "you know best."

The words fall,

Xiaoman glared at Xu Mang and said with displeasure: "idiot!"

Xu didn't want to know more about the early symptoms of Parkinson's disease, so as not to be forced to be hospitalized. At this time, Xu put two pieces of graphene into the experimental equipment. When he was growing up, he knew how to operate it.

"Can you succeed?"

"I don't know..."

in an office,

several intern researchers are chatting, to be exact, they are talking about Xu mang.

"Do you think Professor Xu... Will succeed?"

"How can it be... You don't know how difficult it is, how many professors and high-quality students from famous universities have been asked to come here, but they are helpless. I don't believe that Professor Xu alone can play a role."

"I feel the same way... So many people can't help it. Professor Xu can come here?"

"I think..."

at this time,

at this time,

a girl in the office said, "why do you think that director Cao issued such an announcement? If Professor Xu had not made any breakthrough, then director Cao would have done such a thing?"

"..."

"..."

"..."

"..."

several people were silent. According to Cao's personality, it was really the case.

Has Professor Xu made any progress?

Can't be?

Is Professor Xu really so amazing?

Soon,

the affair between Xu Mang and graphene spread throughout the Research Institute. In addition, at noon, many people did not see Xu Mang and his girlfriend. This rumor became a bit excessive.

Soon, these rumors spread to Wang Xiong and Cao Junhui.

In the face of this rumor, they are helpless. However, the more this time, the more they can not control it, otherwise things will get worse.

"Alas..."

"I don't know what happened to Professor Xu." Sitting in Cao Junhui's office, Wang Xiong said helplessly: "I can't see him at noon. Now the whole research institute is paying attention to him. As a result, he doesn't show up and locks himself in the laboratory."

"Maybe that's the only way to succeed." Cao Junhui said with a smile: "a dedicated attitude."

...

at the same time,

in the laboratory.

Xu Mang and Yang Xiaoman constantly adjust the temperature to the limit, which has reached 4K, that is minus 269.15 degrees.

"Hello

"It's almost to the limit." Yang Xiaoman worried: "will this device explode?"

"Crazy?"

"How could this machine explode?" "Another 0.1k drop," Xu said

When the temperature keeps falling,

Xu's expression becomes colder and colder. His eyes are fixed on the data on the display screen, and his fingers are continuously changing the carrier concentration in graphene.According to common sense,

when the energy band of the carrier is full, it will not conduct electricity, and if the energy band is half full, it will conduct electricity. However, in the process of continuous change, Xu mang found that in the NS region, if it is filled, the conductivity will be zero, that is to say, insulation will be produced, and when the NS2 region is filled, another insulation will appear.

This just doesn't fit into the insulator of the band theory, the Mott insulator.

Mott insulator is the parent material of high temperature superconductor.

It seems that...

it should not be a big problem, maybe the temperature is not enough.

"Hello

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

"Go on!" Xu mang shouts.

As the temperature continues to drop,

Xu mang observed that in the electronic phase diagram, the SC region gradually presents a superconducting parabola shape, which is not very obvious, but has a rough rudiment, which is almost the same as the electronic state phase diagram of high-temperature superconductors.

"Hello

"It's 2K!" Yang Xiaoman said with fear on his face: "will it really explode?"

"No!"

"Keep going down again!" Xu said firmly with a blank face that he was about to see the dawn of hope.

However,

Yang Xiaoman can only listen to Xu mang. Anyway, the explosion makes a pair of desperate mandarin ducks.

When the temperature dropped to 1.7k, Xu mang suddenly called out to stop.

At this time,

Xu mang saw several pictures that were so beautiful as to explode.

"It's amazing!"

"I'm too much of a bull!" Xu mang is constantly controlling the carrier concentration, but his eyes are looking at the display.

From the data analysis, the superconductivity of double-layer graphene with superconductivity is affected by temperature, and when the applied magnetic field is 8t, the Mott insulation state disappears, and thus returns to metal conductivity, that is, the superconductivity of double-layer graphene with superconductivity is affected by magnetic field.

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

because Mott insulator is affected by temperature, it will return to the metal form. At the same time, when the magnetic field is 4T, the conductivity will be restored.

It's successful...

however,

what is the principle of this?

Why can twisted double layer graphene realize superconductivity?

What's going on inside it?

Facing these unsolved mysteries,

Xu mang intends to find out.

......

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