I really don't want to lie down and win

Chapter 428 The rest is okay (3/3, greatly added for lack of money)

Seeing Yang Xiaoman skillfully operating the equipment, Xu Mang felt that bringing Xiaoman here this time was almost one of the wisest decisions he had ever made in his life, but thinking about it, there was a reason for Xiaoman's proficiency. She is proficient in manipulating the gear lever!

Speaking of which, I don't live up to it, but it's just... a great shame to be controlled by a short and flat man!

"Ugh!"

"The three stacked data of AAA, ABA, and ABC have come out. Come and have a look yourself." Yang Xiaoman called out to Xu Mang who was beside him, and seeing him staring at him in a daze, he couldn't help but panic Hongxia, who was in a row, said shyly, "What's wrong?"

"nothing..."

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

"Is this the spatial distribution diagram of Fermi's intensity integration from 0.1 to 0.5eV?" Xu Mang asked curiously, "Why does it look like there is no difference? Are you making a mistake?"

"impossible!"

"I'm serious." Yang Xiaoman said resolutely: "If I make a mistake, I'll let you spank my ass at night, don't you think about it in your dreams?"

"Go away!"

"I want to check it carefully!" Hearing Yang Xiaoman's words, Xu Mang drove her away from the chair on the spot, staring at the display screen alone, and checked the data from beginning to end, with a strange and excited expression on his face There is a trace of expectation and fear in it, and it is also vaguely mixed with fear.

Yang Xiaoman: #￣￣#

Finally admitted it!

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

After checking for about 10 minutes, Xu Mang didn't find anything wrong. At this moment, he had to accept the reality, turned his head carefully, and saw a strange smile on Xiaoman's face, and knew that tonight would be sleepless again. night of.

Ugh...

Life is hard!

"how?"

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

"Ha ha..."

"Look at what you said." Xu Mang smiled awkwardly: "Even if I question the sky, the earth, and the air in the middle, I don't dare to question Her Majesty the Queen... So what... your experimental results make me very satisfied."

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

Xu Mang thought for a while, and said seriously: "Get the energy band transition parameters by fitting the data, and then it's almost done...Because the next thing is to calculate, we will calculate together when the time comes, I suspect... The structure of AAA may lead to superconductivity."

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

"Do you know 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: "The simple point is to connect the data with a smooth curve. My mother, I study economics, and there is a simulation in it." A statistic of goodness, which measures the gap between the expected value of the economic model and the actual value obtained in reality."

words fell,

Yang Xiaoman said: "Don't forget... I am No.1 in the World Math Competition!"

Seeing 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 already 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 do it until 78 years old." age?"

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

"Um..."

after that,

Start tense calculations,

This job was quite boring. The two of them carried out fitting calculations while reminiscing about the interesting things in the past. It took about half an hour. guide.

In the ABC stack, 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 of graphene, which creates a possibility for superconductivity, but this possibility is too large. Mysterious.

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

But there are also unexpected gains,

In the case of an applied vertical electric field, an energy gap will be opened at the Fermi energy and the size of the energy gap can be tuned by the electric field strength.

"what happened?"

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

"Ok!"

"It's completely different from what I expected." Xu Mang frowned and flipped through the data, saying in pain, "The data shows that the stacking method that is most likely to produce superconductivity is the most unattractive one I've seen before."

"Then 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 is the case. The problem is the ABC stacking method, and there is only the possibility of its superconductivity. However, I just found out that this is impossible. Anyway, I failed."

Looking at Xu Mang's disappointed expression and decadent state, Yang Xiaoman didn't know what to do for a while, so he could only comfort him silently: "Don't worry...we will succeed."

"Um..."

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

It is about electronic control of graphene molar superlattice.

but...

There wasn't a lot of data in this paper, and most of it was predictions, but it gave Xu Mang a new kind of inspiration.

"Xiaoman!"

"Calculate this for me." Xu Mang pointed to the large calculation process he had written on the paper, and said seriously, "I have to do other things."

"Ok!"

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

While Xiaoman was working hard on calculations, Xu Mang began to search for the theory of correlation between graphene and boron nitride.

soon,

Xu Mang then found a paper that an optical absorption peak was observed in the graphene molar superlattice, which corresponds to the electronic transition near the superlattice Dirac point.