Seeing Yang Xiaoman operating the equipment skillfully, Xu Mang felt that bringing Xiaoman here this time was probably one of the wisest decisions he had ever made in his life. However, thinking about it, there was a reason why Xiaoman was so proficient. In the past six months,

She controls the gear lever skillfully!

Speaking of which, I didn't live up to my expectations. It was a great shame to have a short and flat man take control of my life!

"well!"

"The three stacked data of aaa, aba, and ab have come out. Come and take a look for yourself." Yang Xiaoman greeted Xu Mang who was standing next to him. He looked at him and stared at her blankly, and couldn't help but feel nervous.

Hongxia, who was in the formation, said shyly: "What's wrong?"

"nothing"

Xu Mang came to his senses and awkwardly walked to Xiao Man. He didn't dare to say what he was thinking just now. If he did, he would definitely get beaten up.

"Is this the spatial distribution map of Fermi's intensity integration between 0.1 and 0.5ev?" Xu Mang asked curiously: "Why does it seem there is no difference? Are you mistaken?"

"impossible!"

"I'm serious." Yang Xiaoman said firmly: "If I make a mistake, I will ask you to spank me at night. Aren't you thinking about it in your dreams?"

"Go away!"

"I want to check it carefully!" When Xu Mang heard Yang Xiaoman's words, he drove her away from the chair on the spot. He stared at the screen alone and checked the data from beginning to end, with a strange and excited expression on his face.

There was a hint of expectation and trepidation, mixed with a hint of fear.

Yang Xiaoman:(#￣～￣#)

Finally admitted it!

Look, I can’t kill you tonight!

After checking for almost ten minutes, Xu Mang didn't find anything wrong. At this time, he had to accept this reality and turned his head carefully. When he saw a strange smile on Xiao Man's face, he knew that he would not sleep again tonight.

night.

well

Life is hard!

"how?"

"Look at the disappointed look on your face." Yang Xiaoman said disdainfully: "Will you still question me in the future?"

"hehe"

"Look what you said." Xu Mang smiled awkwardly: "Even if I question the heavens and the earth, and even the air in the middle, I don't dare to question Her Majesty the Queen. So, I am very satisfied with the results of your experiment."

"Huh!" Yang Xiaoman snorted coldly and asked hurriedly: "What should we do next?"

Xu Mang thought for a while and said seriously: "Get the transition parameters of the energy band by fitting the data, and then it's almost done. Because the next step is the calculation. Then we will calculate it together. I suspect that the structure of aaa may produce

Superconducting.”

"Let me help you with the fitting calculation." Yang Xiaoman said calmly.

"Do you understand fitting?" Xu Mang looked at Xiaoman and asked.

"Fitting is to connect a series of points on the plane with a smooth curve." Yang Xiaoman said: "To put it simply, it is a smooth curve to connect the data. Mom, I am studying economics, and there is fitting in it.

It is a statistic of goodness of fit that measures the difference between the expected value of the economic model and the actual value obtained in reality.”

The words fell,

Yang Xiaoman said: "Don't forget that I am number one in the World Mathematics Competition!"

Looking at Xiaoman's serious expression, Xu Mang asked curiously: "Xiaoman, are you really planning to enter the financial circle? Take over the business at home?"

"Um"

"Originally, my mother wanted you to take over, but you have chosen the path of scientific research, so I can only take over." Yang Xiaoman pouted and said silently: "I can't really let my dad work until he is seventy.

Eighty years old, right?”

Xu Mang grabbed Xiaoman's hand and said softly: "I will stay by your side forever!"

"Um"

after,

Start nervous calculations,

This job was relatively boring. The two of them were recalling interesting things from the past while performing fitting calculations. It took about half an hour. The calculation results came out. What made Xu Mang despair was that there was only one stacking method that could produce super

guide.

In the ab-type stack, the electron dispersion at the Fermi energy of graphene is very small, resulting in a greatly increased state density at the Fermi energy, creating a possibility for superconductivity, but this possibility is too small.

It’s mysterious.

This result surprised Xu Mang. At first he thought it was the aaa stacking method, but it turned out to be his most unsightly stacking method.

But there are also unexpected gains,

When an external vertical electric field is applied, the energy gap will be opened at the Fermi energy and the size of the energy gap can be controlled by the intensity of the electric field.

"What's wrong?"

"Look at the confused look on your face." Yang Xiaoman had no idea what Xu Mang was going through and asked hurriedly: "Did you find it useless?"

"Um!"

"It's completely different from what I expected." Xu Mang frowned and kept flipping through the data, and said painfully: "The data shows that the stacking method that is most likely to produce superconductivity is the most unsightly one I have ever seen."

"Then just accept the facts." Yang Xiaoman said disapprovingly: "It's not a big deal."

Xu Mang sighed and said helplessly: "It would be great if this was the case. The problem is the a-b stacking method, which only has the possibility of superconductivity. However, I just found that this is impossible. In short, I failed."

Yang Xiaoman looked at Xu Mang's disappointed expression and decadent state, and didn't know what to do for a moment. She could only comfort her silently: "Don't worry, we will succeed."

"Um"

Xu Mang was very unconvinced now. He decided to start over from the beginning, starting with the most basic research. The first thing was to collect relevant papers. Not to mention that Xu Mang actually found relevant information in a certain paper.

It’s about the electronic control of graphene molar superlattice.

but

There is not a lot of data in this paper, most of which are predictions, but it gave Xu Mang a brand new inspiration.

"Xiaoman!"

"Help me figure this out." Xu Mang pointed to the large calculation process he wrote on the paper and said seriously: "I have to do other things."

"Um!"

"I will finish it." Although this large calculation process gave Yang Xiaoman a headache, she still gritted her teeth. It was not a good thing to be willful at this time. After all, it was related to her fiancé's reputation.

While Xiaoman was working hard on calculations, Xu Mang started searching for papers related to graphene and boron nitride.

soon,

Xu Mang found an article. An optical absorption peak was observed in the graphene molar superlattice, which corresponds to the electronic transition near the Dirac point of the superlattice.

The state of graphene in this article is similar to the stacking method of aaa, but the data is completely different.

Understood!

Finally got it!

Xu Mang suddenly realized that his guess was not wrong, but that the set of data he gave was wrong. Now he was waiting for Xiaoman to calculate the result. If the result was similar to what he imagined, then there would be no problem.

So risky,

It was almost a tragedy.

At this time, Xu Mang felt like he was surviving a disaster, and he almost stopped being autistic.

However, Xu Mang was not idle, and began to estimate the aaa stacking method of three-layer graphene. In his estimation, the superconductivity of three-layer graphene requires another material to be superimposed. This material is boron nitride.

.

His basis comes from the paper just now. When graphene is on a boron nitride substrate, the impact of electronic state optical transition will decrease as the Fermi level in graphene increases.

At half past four in the afternoon,

Yang Xiaoman finally solved the task given to her by Xu Mang. When she handed the paper with the calculation process to Xu Mang's hand, Xu Mang jumped up excitedly after a while, hugged Xiaoman and kissed her fiercely.

.

(￣▽￣)￣*)

(*￣3(￣▽￣)

(*￣3)(￣*)

This made Xiaoman extremely happy. She rarely had such a passive experience. She basically forced him to do this.

"Success!"

"Xiaoman!" Xu Mang held her tightly in his arms and said happily: "The two of us have pushed graphene to a whole new level!"

actually,
To be continued...