Seeing that Yang Xiaoman was skillfully operating the equipment, Xu Mang felt that bringing Xiaoman over this time was almost one of the wisest decisions he had ever made in his life, but thinking about it, there was a reason why Xiaoman was proficient, and she had been proficient in controlling the gear handle in the past six months!

Speaking of which, I am not angry, but I was actually grasped by a short and flat hair, it is just... What a shame!

"Alas!"

"The three stacked data of AAA, ABA, and ABC are out, and you can come and see for yourself. Yang Xiaoman greeted Xu Mang, who was on the side, and looked at him stunned and stared at him, and couldn't help but blush with bursts of redness, and said shyly: "What's wrong?"

"Nothing..."

Xu Mang came back to his senses and walked to Xiao Man's side in embarrassment, he didn't dare to say what he was thinking just now, he would definitely be beaten by fat if he said it.

"Is this a spatial distribution of Fermi's strength integration from 0.1 to 0.5 eV?" Xu Mang asked curiously, "Why does it seem that there is no difference, are you mistaken?"

"Impossible!"

"I'm serious. Yang Xiaoman said with a resolute face: "If I make a mistake, I will let you spank my ass at night, aren't you dreaming about it?"

"Go away!"

"I'm going to check it well!" Xu Mang heard Yang Xiaoman's words, and drove her away from the chair on the spot, staring at the display screen alone, checking the data from beginning to end, with a strange expression on his face, with a trace of expectation and trepidation in his excitement, and vaguely mixed with fear.

Yang Xiaoman: (# ̄~ ̄#)

Finally admit it!

Look at the old lady, I can't kill you at night!

After checking for almost ten minutes, Xu Mang didn't find anything wrong, at this time he had to accept this reality, turned his head cautiously, and saw a strange smile on Xiao Man's face, knowing that tonight was another sleepless night.

Alas...

It's a hard life!

"How?"

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

"Hehe..."

"Look at what you said. Xu Mang smiled embarrassedly: "Even if I question the sky and the earth, and then question the air in the middle, I don't dare to question the queen... So what... I am very pleased with the results of your experiments. ”

"Hmph!" Yang Xiaoman snorted coldly and hurriedly asked, "What should I do next?"

Xu Mang thought for a moment and said seriously: "Fit the data to get the transition parameters of the energy band, and then it's almost enough... Because then it's a matter of calculation, and when the time comes, we'll do the math together, I suspect... The structure of AAA may produce superconductivity. ”

"I'll do the fitting calculations for you. Yang Xiaoman said indifferently.

"Do you know fitting?" Xu Mang asked, looking at Xiao Man.

"Fitting is a series of points on a plane connected by a smooth curve. Yang Xiaoman said: "The simple point is that a smooth curve connects the data, and I am studying economics, and there is a statistical goodness of fit in it, which measures the difference between the expected value of the economic model and the actual value obtained in reality." ”

Words fall,

Yang Xiaoman said: "Don't forget... I am the first place in the World Mathematics Competition!"

Looking at Xiao Man's serious expression, Xu Mang asked curiously, "Xiao Man... Are you really going to go into the financial world? Take over the business?"

"Hmm..."

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

Xu Mang grabbed Xiao Man's hand and said gently: "I will be by your side forever!"

"Hmm..."

afterwards

Start the nervous calculations,

This work is relatively boring, the two of them while recalling the interesting things in the past, while carrying out fitting calculations, about half an hour or so, the calculation results came out, what made Xu Mang feel desperate was that there was only one stacking method that could produce superconductivity.

In the ABC stacking, the dispersion of electrons at the Fermi energy of graphene is very small, which leads to a great increase in the density of states at the Fermi energy, which creates a possibility for superconductivity, but this possibility is too mysterious.

This result surprised Xu Mang, who at first thought it was the AAA stacking method, but it turned out to be the most unsightly stacking method for himself.

But there are also windfalls,

In the case of an external vertical electric field, the energy gap opens at the Fermi energy and the magnitude of the gap can be controlled by the electric field strength.

"What's wrong?"

"Look at the look you look confused. Yang Xiaoman didn't know what happened to Xu Mang, and hurriedly asked, "Did you find it useless?"

"Hmm!"

"It's not at all what I expected. Xu Mang frowned and continued to flip through the data, and said bitterly: "The data shows that the stacking method that is most likely to produce superconductivity is the most unsightly one I have before." ”

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

Xu Mang sighed and said helplessly: "It would be good if this was the case, the problem is the ABC stacking method, but there is only the possibility of its superconductivity, but just now I found out that this is not possible at all, 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 while, so he could only comforted silently: "Don't worry... We will succeed. ”

"Hmm..."

Xu Mang is very unconvinced now, he decided to start all over again, starting from the most basic research, the first thing is to collect relevant papers, not to mention that Xu Mang really found relevant information in a certain paper.

It is about the electronic regulation of graphene molar superlattice.

But...

The data in this paper is not very large, and most of them are predictions, but it gives Xu Mang a new kind of inspiration.

"Xiao Man!"

"Help me figure this out. Xu Mang pointed to a large piece of calculation process he had written on the paper, and said solemnly: "I have to do something else." ”

"Hmm!"

"I'll get it done. Although the calculation process of this blockbuster made Yang Xiaoman feel a headache, she still gritted her teeth, it is not a good thing to be willful at this time, after all, it is related to the reputation of her fiancé.

While Xiao Man was painstakingly calculating, Xu Mang set out to search for papers on graphene and boron nitride.

soon

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

The graphene state of this piece of content is exactly the same as that of AAA stacking, but the data is completely different.

I see!

Finally understood!

Xu Mang suddenly realized that his speculation was not wrong, but the set of data he gave was wrong, and now he is waiting for Xiaoman's calculation results, if this result is similar to what he imagined, then there is no problem.

Good risk,

It was almost a tragedy.

At this time, Xu Mang had a feeling of the aftermath of his life, and he almost didn't close himself.

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 needs another material to be superimposed, and this material is boron nitride.

And his basis is from the paper just now, when graphene is on the boron nitride substrate, the effect of the electronic state light transition will decrease with the increase of the Fermi energy level in the graphene.

At half past four in the afternoon,

Yang Xiaoman finally solved the task given to her by Xu Mang, and when the paper with the calculation process was handed to Xu Mang's hand, it didn't take long for Xu Mang to jump up excitedly and hug Xiao Man, who kissed him fiercely.

(￣▽￣)ε￣*)

(*￣3(￣▽￣)

(*￣3) (ε￣*)

This made Xiao Man very happy, she rarely had such a passive experience, and basically forced him to do it by herself.

"It worked!"

"Xiao Man!" Xu Mang hugged her tightly in his arms and said happily: "The two of us have pushed graphene to a new height!"

In fact

Yang Xiaoman didn't pay attention to these, she was still immersed in the happiness just now, and she couldn't extricate herself for a long time.

...

A certain canteen of Jiang University,

Xu Mang and Yang Xiaoman were dining, and countless of them found Xu Mang with a shy face and asked to take a photo with him. Until the appearance of a green tea completely knocked over the vinegar jar that was originally filled with vinegar.

"Professor Xu!"

"You... Why are you here?" A good-looking girl found Xu Mang's figure and said obsessively: "Professor Xu... I'm a fan of yours, I like you very much, and since your live broadcast, I've been completely fanned by you. ”

Hum!

A fan of someone?

Lady, I'm still vermicelli!

Looking at the flamboyant girl in front of her, Yang Xiaoman felt that this woman didn't look like a good person, judging from her rather mature aura, this person must have a special purpose, maybe she wanted to use Xu Mang to make herself an Internet celebrity.

Be vigilant!

Be vigilant!

"Sister?"

"Help me take a photo with Professor Xu, thank you. The girl handed the phone to Xiao Man, and then stayed next to Xu Mang, her head to Xu Mang's side.

Yang Xiaoman almost didn't explode on the spot, but remembering his cousin's iron law, he didn't lose his temper and took a photo silently.

"Honey?"

"Have you eaten enough?" Yang Xiaoman said expressionlessly: "If you are not full, I will help you get another one." ”

"Okay!"

Yang Xiaoman: (* ̄〈 ̄)

You're so big!

Mother, I'm warning you to go!

But

In the end, Xiao Man still went to give Xu Mang a meal, but due to the current large number of people, the time may be a bit long.

And this just gave the girl next to Xu Mang a chance to pry the corner of the wall.

"Professor Xu?"

"Was that your girlfriend just now?" the girl asked curiously, "It seems... It seems that the body is not good in all aspects. ”

“...”

"Excuse me, lean to the side. Xu Mang frowned and said, "I'll be misunderstood later." ”

The girl moved to the side obediently and said affectionately, "Professor Xu... You're just perfect, why can't I meet someone as nice as you?"

Faced with this problem,

Xu Mang thought about it seriously for a while, and said with a serious face: "Maybe your life is not good!"

I...

This...

Hearing Xu Mang's words, the girl didn't know how to answer for a while.

It can't be a straight man, right?

"I said..."

"The photos have been taken, and the chats have been chatted, you should almost leave, right?" Xu Mang said helplessly: "Your perfume is poisonous... I'm almost throwing up. ”

With a hint of resentment,

This ill-intentioned girl left Xu Mang's side and happened to meet Yang Xiaoman, who came back with a meal.

In contrast,

The girl with bad intentions really can't understand why Professor Xu Mangxu would find such a person to be his girlfriend, except for her beautiful face, she is better than her anywhere else.

"Huh?"

"Why is the girl pestering you glaring at me?" Yang Xiaoman handed the food he had just called to Xu Mang, and asked with a strange face.

"I don't know. ”

Xu Mang frantically picked up the rice, eating with a mouth full of oil.

"Stupid?"

"When are we going back?" Yang Xiaoman asked, sitting across from him, curiously.

"Tomorrow morning. ”

"There is nothing wrong with the rest. Xu Mang said proudly: "Our Black Wind Twin Evils will once again shock the world!"

......