I Just Want to Be a Quiet Top Student

Shen Qi used computer simulation software to construct LSMO/LAO/STO heterostructures with different Sr doping concentrations, and generated a schematic diagram of 4LSMO/3LAO/STO heterostructures, in which green, blue, red, brown, pink, and gray are small Balls represent Sr, La, O, Mn, Al, Ti atoms respectively, and they are arranged according to certain rules.

It can be clearly seen that this heterostructure has a total of 11 layers, containing 165 atoms, and all structures adopt a cubic phase, in which the number of layers of the cover layer LSMO and the substrate STO is 4, while the number of layers of the middle LAO is 3. Less than the 4-layer LAO critical layer number required for metal-insulator transition at the LAO/STO interface.

In order to eliminate the influence of periodic boundary conditions on the calculation results, Shen Qi added a vacuum layer of 15 Å above the LSMO, and the calculated STO in-plane lattice constant was 3.88 Å.

Based on first-principle calculations, Shen Qi found that changing the Sr doping amount can effectively regulate the internal polarization field of the LSMO cladding layer and realize the metal-insulator transition at the LAO/STO interface.

"The migration of positive and negative ions in the LAO layer is obviously suppressed due to the electronic reconstruction offsetting its internal electric field. From this point of view, the polarization catastrophe mechanism seems to be more convincing." After saving it, Shen Qi exited the simulation software and looked at these structural diagrams for a long time , Energy level distribution diagram, it feels so painful to the eyes.

There are still some gains. Shen Qi calculated for a whole day and got some useful data.

With the simulated data, you can start to compile the theory, which is more formally called theory construction.

But the amount of data is still too small, and Shen Qi is a little guilty of constructing the theory.

Today's experimental equipment can verify most of the condensed matter physics theories, and a theory with a slight loophole will be slapped in the face by others in minutes.

The confrontation in mathematics is mainly a deduction of theoretical logic. Whoever has a big brain and strict logic will win.

Contemporary physicists don't do this kind of thing, there is nothing to argue about in theory, if there is any disagreement, let's go to the equipment and use the experimental data to speak.

After a busy day's work, Shen Qi returned to the staff dormitory. The 150 square meter apartment he was allocated had all the furniture and appliances, and he would move in with Ouye after a while.

Entering the living room, Shen Qi saw Ouye sitting on the sofa in a daze, expressionless, neither happy nor angry, just like a statue.

"I'm back." Shen Qi took off his coat and threw it on the sofa.

"Oh." Ouye hummed a word.

"Take a break, and then let's go out to eat?" Shen Qi asked the family leader about the dinner arrangements.

"No." Ouye hummed two words.

Shen Qi asked cautiously: "Darling, what's the matter with you, are you still in a mood? Last time, I got your approval to go to the organizational life of our department."

"Hehe." Ouye moved his lips, seemingly smiling.

"Hehe." Shen Qi laughed along with him.

Ouye caressed her abdomen, maintaining her unique, mysterious, half-smile expression: "I have good news for you."

"This..." Shen Qi felt like being struck by lightning. He was shocked at first, and then pleasantly surprised: "Little Ye Zi, are you happy? I'm going to be a father?"

"I'm going to be a father!" Shen Qi jumped up violently, this is really good news, I'm about to become an old father suddenly.

"Then let's get the certificate quickly! Go to the Civil Affairs Bureau tomorrow. After receiving the certificate, we will set up wine. First, we will put on a show in the capital, and then go to our hometown to continue the show. There is nothing to be missed on the table." After being excited, In the face of emergencies, Shen Qi maintained the calmness and rationality that a theorist should have. He asked Ouye: "It's been a few months. When did you have the examination?"

"I just found out." Ouye was calm from the beginning to the end.

Shen Qi put his face sideways on Ouye's belly, and felt the movement in Ouye's abdomen with concentration: "The movement is not small, could it be twins?"

Ouye patted Shen Qi's head: "Come on, who said I'm pregnant?"

"Huh?" Shen Qi was confused, he asked in confusion: "You show that mysterious expression, and you rub your stomach, what is the good news?"

"I won the prize." Ouye said the answer.

"Award?"

"Well, the Morningside Math Prize."

"Oh, I'm going, is this the good news?" Shen Qi didn't feel any wavering in his heart, and even wanted to laugh a little.

"Professor Shen doesn't like this kind of small award, but I am very happy." This is the first important mathematics award that Ouye has been nominated for, and of course she is happy.

"Morningside Mathematics Award, Chinese Fields Medal, I have never won this award, good thing, great thing, congratulations to you little leaf, you finally won the prize." Shen Qi returned to normal, the old father can't be a temporary, Girlfriend is worth celebrating.

"You get the prize if you win it. Why rub your stomach? It's not your habitual action." Shen Qi still didn't understand why Ouye conveyed the good news while rubbing his stomach.

"Late lunch, I'm so full." Ouye touched her stomach again, and she poked Shen Qi's chest: "Hey, you like children, don't you?"

"I like it, we'd better have two, one boy and one girl." Shen Qi said.

"Then you have to work with a certificate." Ouye reminded.

"It's too late this year. Let's take care of things next year." Shen Qi and Ouye will both be 26 next year.

Ouye pinched Shen Qi's ear: "Hey, Shen Qi, getting married is a major event in life, why do I feel like you are going to the supermarket to buy cabbage?"

Shen Qi sat up straight and said solemnly: "Next year we will have a wedding, and I, Shen Qi, will marry you in a beautiful manner. The guests who come to our wedding will sit at the same table for the winners of the Philippine Prize, and sit at the same table for the winners of the Nobel Prize. We are as good as anyone in the scene. .”

"Blow it up!" Ouye giggled, and she said, "I believe the winner of the Philippine Prize will give you face, but I don't believe in the Nobel Prize."

"Ouye, just wait for me, I will definitely give it to the Nobel laureates who have assembled a table."

Ouye became vigilant: "If you can't get together a table of Nobel laureates, you won't get married?"

"We still have to get married, the Nobel Prizes are not enough, so the professors come to join us."

"Skin!"

"Pick it up, and then go out to have dinner together, you won't be hungry if you don't take a bite." Shen Qi carried Ouye into the bedroom and got up.

...

The next day when Shen Qi inquired, Ouye had really been nominated for the Morningside Mathematics Award, and she was very popular for winning the gold award. The reason why she was included in the nomination list was that she had completely proved the Jesmanovich conjecture.

The founder of the Morningside Mathematics Award is a Hong Kong business tycoon, who entrusts the Morningside Mathematics Center to organize, select and award.

The Morningside Mathematics Award mainly recognizes Chinese mathematicians under the age of 45 who have made outstanding achievements in pure mathematics and applied mathematics. There will be one gold award and several silver awards each year.

Shen Qi was not selected for the nomination list of the Morningside Mathematics Prize because no one in the Chinese mathematics community can judge him.

Shen Qi also didn't want to win this award. It was meaningless to occupy a spot. It's better to leave it to young mathematicians with potential, such as his girlfriend.