night

It's still so quiet,

Yang Xiaoman was lying on Xu Mang's back, she drank a little too much today, a cup of the original recipe of 'Long Island Iced Tea', directly made Xiao Man stunned, it was a cocktail with an alcohol content of more than 40 percent, although it was very comfortable to drink, but the degree was not ordinarily high.

Yang Xiaoman: Zzzz

Xiao Man in the sleep does not have the slightest queen look, at this time she is like a little sister next door, not very tall, but unusually cute, pestering the childhood sweetheart brother every day, either crazy here, or mischievous there, and now the two are tired of playing.

"Huh!"

"This is drunk like mud!" Xu Mang touched his shoulder and found that it was wet, fortunately the car had already let the old man's driver drive away, otherwise according to Xiao Man's drunkenness, as long as she accelerated, her stomach would not be able to stand it.

"Husband?"

"Husband?"

Yang Xiaoman, who was in drunken mode, opened his hazy eyes and said in a squeaky voice: "Husband... Tomorrow... Buy that bar... I... I've prepared many, much, much... The money, you... You discuss it with Tatsuki and buy... Buy it. ”

Words fall,

fell into a coma again, but the words just now touched Xu Mang a little, although Xiao Man didn't even have an ID card when he was in love with him, he was simply mature at that time, but he was like a child who didn't grow up.

Four years have passed... It's not like I'm already mature, but Xiaoman is like a child who can't grow up, this change... It's hard to prevent.

Carrying Xiao Man on his back,

Walking on the way home, at this time, every bit of memories from the past rushed to the brain, as if... I've carried Xiaoman many times, and she seems to like this feeling the most, and then she rides an electric car to take her home, and now think about it... At that time, love was as pure as milk.

Back home,

Directly threw Xiao Man on the bed, adjusted the air conditioner to the right temperature, Xu Mang left the bedroom and went to his study, although he drank a lot of wine when he was in the bar, but he could still bear it.

During the day, Xu Mang had completed half of the theoretical framework of magnetic topological insulators, and the remaining half... Xu Mang planned to finish it overnight, it shouldn't be a problem, and with the stimulation of a little alcohol, the inspiration had already begun to burst.

According to calculations and previous experience, bismuth telluride should be a single crystal thin film after the electronic structure of MnTe is combined, although this does not get much content at all, but after applying the structure formula of Xu Yang, it is found that there is a seven-layer structure.

Xu Mang carried out simulations on the computer, and according to the simulation, it was calculated that under no less than two seven-layer structures, the bismuth telluride material with MnTe electronic structure has a Dirac-type surface state.

This proves that this is a three-dimensional topological insulator, and finally it is possible to know whether this particular material is an antiferromagnetic topological insulator based on magnetic measurements and first-principles calculations.

"Huh?" Xu Mang looked at the picture on the display screen, and suddenly became interested in this sorting structure, forcing him to finish the work, and couldn't help but continue to study.

In the following research, Xu Mang discovered that this unique magnetic structure will make this material display extremely rich and excellent topological quantum states of matter, and its thin films with an odd thickness of seven layers are in the quantum anomalous Hall phase.

The film with an even thickness of seven layers is in the axial insulator phase and exhibits a topological magnetoelectric effect, and the three-dimensional bulk phase is an antiferromagnetic topological insulator with a topological axial surface state, which can be transformed into the simplest magnetic Weyl semimetal under the applied magnetic field.

in a word

This unexpected material structure is really amazing, if the single-layer crystal structure, the manganese element is replaced, and a class of related materials can be produced, mainly through reasonable dimensional and magnetic control, you can achieve a lot of topological phases, such as antiferromagnetic topological insulators, Weyl semimetals, quantum anomalous Hall effect, shaft insulators, etc.

But...

"Wait a minute!"

"Xu Mang... You're now directing a researcher to conduct a study, rather than a person taking the whole of that research... Let someone else have a biological path!" Xu Mang patted his forehead, feeling guilty about his offside, he was killing the future of young people.

After they have studied it themselves, what should they do? What else can they study? Selfish... It's so selfish!

"Husband?"

"Husband, where are you?"

"I... I'm a little thirsty in my mouth... Husband?"

suddenly

Xu Mang heard Yang Xiaoman's shout, trotted to the violent airfield, and asked gently, "What's wrong?"

"Hmm..."

"Drink water... I want to drink water..."Yang Xiaoman looked half-asleep and half-awake, but the word uncomfortable was written on his face, even Xu Mang, a straight man of steel, was touched by this scene, hurriedly brought a glass of warm water, and then hugged Xiaoman with one hand and brought the water cup to his mouth.

"Ahh

"The water is coming," Xu said.

"Hey me...", this out-of-tune sentence came out of confusion.

Xu Mang: Σ(°△°|||) ︴

What the?

This... After this woman gets drunk, it's too scary, right?

But it doesn't look like it's pretended.

ultimately

Xu Mang still fell, and he became a real favorite wife maniac.

(*￣3) (ε￣*)

however

Unexpectedly, the nightmare had just begun, and in the next six hours, Yang Xiaoman gave full play to his willful appearance after being drunk, either kicking the quilt or crying and shouting for a hug, and even letting Xu Mang take a bath.

If it weren't for true love, Xu Mang might have thrown it away... No way... This woman is his wife.

...

Following

At 9:45 a.m.,

Yang Xiaoman finally woke up, after opening her eyes, she found that she was lying on the bed at home, and she didn't think much about it, holding her forehead, at this time there was a burst of headaches, which made Xiaoman a little upset, she was supposed to have a meeting in the guild today, this state... It won't happen.

"I..."

"It shouldn't be... I actually drank a cup of black tea and got drunk?" Yang Xiaoman fell into cognitive confusion, if it was a serious cocktail, forget it, a cup of black tea... There's a slice of lemon on it, and it turns out... Drinking and drinking, there is no consciousness.

Don't... Something wrong with that bar?

Then

Xiao Man thought of some reports in the news, some gangsters were bad in the bar, in other people's drinks... The more I think about it, the more scared I feel, but fortunately, the big fool around me has always been with me, otherwise... The consequences are unimaginable.

"Husband!"

"Husband!"

Yang Xiaoman covered the quilt and shouted in the room: "You hurry up and come up for me!"

moment

Xu Mang came to the bedroom, glanced at Xiao Man lying on the bed, and asked curiously, "What's wrong?"

"Quick!"

"Call the police!" Yang Xiaoman said nervously: "Lady, I lost consciousness after drinking a cup of black tea, there must be something wrong with the bar, and she wants to kill us for money." ”

"What black tea. ”

"You're drinking Hiroshima tea, a cocktail made with four base liquors: vodka, rum, gin, and tequila, and toppings such as ice, white mint, and lemon juice. Xu Mang said angrily: "This originated in Hiroshima, USA, and the alcohol content is as high as 40 degrees. ”

"Huh?"

"But... It's delicious. Yang Xiaoman pouted and said angrily.

Xu Mang smiled bitterly: "I said it at the time, you don't listen to it yourself, just drink it up, what can I do?"

Although Xu Mang was not wrong, Xiao Man still blamed the sin on his head, it is unlikely that he will go to work in this situation today, Xiao Man decided to give himself a vacation and take a good rest at home, he has been really tired enough recently.

"Didn't you sleep all night yesterday?" Yang Xiaoman found that Xu Mang's mental condition was very poor, and the heavy dark circles under his eyes... What happened that night? He wasn't so weak before, he didn't do anything for a few nights, but this time he collapsed in one night.

"Anyway... What's wrong with you?"

"How haggard you looked like this one night?" Yang Xiaoman asked with a worried face.

“...”

"Xiao Man... Promise me not to get drunk in the future. Xu Mang sighed and said with a wry smile: "You are simply... It's so good at tossing people, I almost died, you know?"

Yang Xiaoman: (# ̄~ ̄#)

Afternoon

Xu Mang went to the research institute with the theory, of course, this time he didn't drive, but let the old man's driver pick him up, with his current mental state, it is easy to have a car accident, Xiao Man will never allow this kind of tragedy to happen.

When I arrived at the office of the quantum materials group, I pushed the door and saw six members sitting together, as if they were studying something.

"Huh?"

"Where are they all?" Xu Mang said with a smile: "Very diligent and hard-working... Excellent!"

"Yao Shui. ”

"This is a theoretical study report on intrinsic magnetic topological insulators, you go and see for yourself, according to my theory above, you carry out synthetic preparation, and then all the data of this material. Xu Mang said solemnly: "The experimental measurement results of intrinsic magnetic topological insulators for the epitaxial growth of molecular beams, and the structural analysis index under the high-resolution electron microscope diagram. ”

"Dirac-type surface states and Hall resistance curves of the magnetic field under angle-resolved photoelectron spectroscopy. Xu Mang said: "In particular, the Hall resistance curve with the magnetic field... Antiferromagnetic to ferromagnetic conversion data. ”

“？？？”

“？？？”

“？？？”

What the?

Finish... Done?

For a while, everyone present looked at Xu Mang in confusion, and their eyes were full of doubts.

"Xu..."

"Professor Xu?"

"The theoretical design was completed in such a short time?" Sun Yaoshui asked cautiously, "Is it accurate?"

"I don't know. ”

"Give it a try. Xu Mang said with a tired face: "What... That's where the information is, right... Tomorrow and the day after tomorrow, there may be a new person coming over, who is a graduate student of the Department of Materials at Fudan University, and you will help each other. ”

Words fall,

Xu Mang left the office.

Looking at Xu Mang's departing back, the six people present glanced at each other, and everyone present just now saw that tired expression, and was instantly silent.

Sun Yaoshui picked up the information in front of him, and at this time the other five people also came up, and when they opened it and saw the contents inside, the atmosphere in the office dropped to freezing point for a while, and the air was completely condensed at this moment.

They don't just see the process of calculations and theoretical proofs, they also read about the greatness that lies in calculations and theories.

But

Then came the shock.

"it!"

"That's what Professor Xu can do, right?"

......