I really don't want to lie down and win

Yang Xiaoman originally came up with an invincible reason to beat him up, but inadvertently this reason became his stepping stone.

"handsome!"

"What a handsome fart!" Yang Xiaoman rolled her eyes, "Take me upstairs, I'm going to sleep!"

Fortunately, Xiaoman was very light, so Xu Mang carried her up the stairs in the form of a princess hug.

very softly,

small movements,

However, I can't die... Xu's mother opened the door and saw this scene. Her son hugged his daughter-in-law, looking furtive. Looking at the expressions of the two, his son was full of tension, and the daughter-in-law buried her head In her arms, looking from the side, it seems... very red!

"Cough cough!"

"Be careful at night."

words fell,

Mother Xu walked down the stairs and went to the kitchen, not knowing what to do.

"..."

"..."

It's embarrassing for the two of them.

"What's the ink?"

"Are you going to wait for Mom to come up and say something again?" Yang Xiaoman raised his head and glared at Xu Mang: "Hurry up and open the door!"

hastily,

Xu Mang and Xiaoman came to the room and locked the door behind their hands.

This night,

Still so annoying.

...

The next day,

Back to the lab.

Xu Mang started the next experiment.

With the help of the quantum database, I roughly figured out the superconductivity problem of C6CaC6, and it was indeed caused by the electrons provided by calcium atoms to the graphene layer.

"what happened?"

"What problem did you encounter?" Seeing Xu Mang frowning, Yang Xiaoman stood up and helped him rub the corners of his eyes, and said, "Long-term frowning will cause crow's feet."

"I think..."

"You said that graphene is a planar film composed of carbon atoms in a hexagonal honeycomb lattice. The thickness is only a two-dimensional material with a thickness of one carbon atom, but superconductivity can be achieved by sandwiching calcium atoms. What does this belong to? The situation?" Xu Mang asked: "There is no change, just a layer of calcium atoms."

"..."

"I don't know either." Yang Xiaoman said, "But I know...there are many ways to superconduct graphene."

"What do you think I should do now?" Xu Mang asked.

"We have to find the answer from other high-temperature superconductors..." Yang Xiaoman said: "Observe the superconducting properties of other superconductors and the changes in the quantum microcosm."

"..."

Ugh?

and many more!

Xu Mang suddenly realized, as if he had forgotten a certain step, it might be the key step!

Strong interactions between electrons,

That is, the highly entangled state caused by mutual repulsion between electrons, in all high-temperature superconductors, shows the strong interaction between electrons, which is the key to the realization of superconductivity.

Then,

Yang Xiaoman found a theory written by a former physicist. Although this theory belongs to the category of prophecy, it provided a direction for their work. The theory said that when the rotation angle of bilayer graphene changes, electrons may be generated. interaction.

"Fool."

"If two layers of hexagonal graphene in a honeycomb lattice are rotated at an angle, wouldn't it just produce a flickering ripple effect?" Yang Xiaoman pointed to the display screen: "Look, is this Moore?" tattoo?"

"nonsense!"

"This is an inevitable effect when two geometrically regular patterns overlap."

The voice just fell,

Only then did Xu Mang react.

The rotation of the angle produces not only moiré, but also expanded cells.

after that,

Through the design of the model, Xu Mang found that when the rotation angle of the two layers of graphene was changed, the ripples between light and dark could be seen very clearly, and the smallest repeating unit of the ripples was in the shape of a rhombus.

Not only that,

Xu Mang also found another strange feature. The bright part is arranged with AA, and the darker part is arranged with AB or BA. Such a layout...doesn't exactly form the concept of peaks and troughs.

"Xiaoman!"

"Are there any relevant calculation equations in that prophecy?" Xu Mang asked.

"Let me see..."

"Yes!" Yang Xiaoman said.

"give me."

"Oh..."

Xu Mang got the printed thesis and checked it over and over again, especially the calculation part. According to the calculation results of this thesis, when two layers of graphene are rotated, the Fermi velocity may be changed.

but...