I Don’t Want to Win Lying Down

Xu Mang thinks that everyone is not optimistic about graphene is justified, although many people believe that graphene may achieve room temperature superconductivity. There are many theoretical data on this, which support this statement.

but...

Judging from the graphene superconductivity experiment of the foot basin, it is almost impossible for graphene to become a superconducting material at room temperature. The concept of minus 269 degrees has completely shattered its practical value. This experiment just shows that graphene has Superconducting performance only.

The challenge Xu Mang faces now is how to obtain superconducting performance in different ways.

"what happened?"

"Look at your restless look." Yang Xiaoman, who had eaten dinner, really lay in Xu Mang's arms. After reading a Weibo, he saw Xu Mang's frown and asked curiously: "Yes Are you worried that the bull blown out will fall and be killed?"

"No."

"I'm thinking about the sandwich-type double-layer graphene compound of the foot pot chicken." Xu Mang said: "The insertion of calcium atoms between the double-layer carbon atom graphene film actually achieved superconductivity, although it needs to be below zero. It's only a degree."

"What is this compound called?" Xu Mang asked.

"C6CaC6!"

"Right, right, right!" Xu Mang nodded, "Is it related to calcium atoms?"

Yang Xiaoman said seriously: "I said you are a big idiot, you only read half of the papers? The latter research team inserted lithium between the double-layer graphene instead of calcium. As a result, the lithium intercalation compound did not occur excessively. Leading phenomenon."

"what?"

"Is it caused by calcium atoms supplying electrons to the graphene layer?" Xu Mang asked in surprise.

Xiaoman shook his head: "How do I know... How about you go back to the laboratory and test the data to verify your guess?"

"it is good..."

"What a ball!" Xu Mang reached his mouth, noticed Xiaoman's expression, and hurriedly changed his words: "Leaving such a beautiful girlfriend at home without hugs, I ran to the empty laboratory alone, my brain is sick. ?"

Words fall,

Xiaoman is satisfied.

"I think...to find out the research and theories of the physical properties of superconducting graphene is what we need to do now." After a day of training, Yang Xiaoman has accumulated a lot of knowledge in this area, and he will be educated. Said: "We can make a metal compound, or try to change the number of graphene layers, miracles may happen."

Change the number of layers?

Yang Xiaoman's words provided Xu Mang with different ideas. Of course, all of this needs to be clear about the nature of superconductivity.

night,

Came silently.

In the same situation as yesterday, Yang Xiaoman has an inexplicable irritability. Xu Mang feels...When the time continues to decrease, every night, Yang Xiaoman’s irritability index will rise a little. If calculated like this, it will be the third year of the new year. On the tenth night, Xiaoman would explode on the spot.

"Ugh?"

"What's your situation?" Xu Mang looked at Xiaoman in her arms with joy, and suddenly had a headache, and said, "Do you have such expectations?"

"Leave me alone!"

"Big idiot... did you have a girlfriend before?" Yang Xiaoman squeaked, "How many? How far?"

Wait!

Routines, traps, traps!

I deliberately dug a big hole and let myself jump down.

cut!

"No!"

"I am a very pure person. Except for you leaning on me desperately, I usually don't talk to girls." Xu Mang said seriously.

Hearing Xu Mang's words, Yang Xiaoman was very angry. What does it mean to lean on you? Who was behind to fiddle? Who keeps making small moves? Isn't this just to get my old lady's attention.

"Ouch..."

"What are you talking about!" Yang Xiaoman urged: "I won't be angry."

not going to be mad?

Ha ha...

How many girls said to their boyfriends that they wouldn’t be angry, but the boys said it, and then they became angry.

"Really do not have!"

"I really only have you as a girlfriend. I was alone before... Do you think about it yourself, when you were in school, who would be willing to make friends with me?" Xu Mang sighed, "After all, I'm so handsome, they It will be stressful."

Whoops!

I really want to kill him!

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

"Handsome!"

"Handsome shit!" Yang Xiaoman gave a white look: "Hold me upstairs, I'm going to sleep!"

Fortunately, Xiaoman was very light, and Xu Mang hugged her up the stairs in the form of a princess.

The sound is very soft,

Movement is small,

But it's so dying... Mother Xu saw this scene when she opened the door. His son was holding his daughter-in-law in a sneaky look. Looking at the expressions of the two, his son was nervous and his daughter-in-law buried his head. In his arms, looking from the side, it looks like... very red!

"Ahem!"

"Be careful at night."

Words fall,

Mother Xu went down the stairs and didn't know what to do when she went to the kitchen.

"..."

"..."

The two are embarrassed.

"What's the ink?"

"Are you planning to wait for Mom to come up and say something?" Yang Xiaoman raised his head and glared at Xu Mang: "Open the door quickly!"

hastily,

Xu Mang and Xiaoman came to the room and locked the door backhand.

This night,

Still so toss people.

...

The next day,

Back to the laboratory.

Xu Mang began the next experiment.

With the help of the quantum database, I probably figured out the superconductivity of C6CaC6, which is really caused by the calcium atom providing electrons to the graphene layer.

"what happened?"

"What problem did you encounter?" Yang Xiaoman saw Xu Mang frowning, got up and rubbed the corners of his eyes, and said: "Long-term frowning can cause crow's feet."

"I think..."

"You said that this graphene is a hexagonal honeycomb lattice composed of carbon atoms, a two-dimensional material with a thickness of only 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 you can know...there are many ways to superconduct graphene."

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

"We need 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 microscopic world."

"..."

Ugh?

and many more!

Xu Mang suddenly realized, as if he had forgotten a certain step, it may be this crucial step!

Strong interaction between electrons,

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

Immediately after,

Yang Xiaoman found a paper by a previous physicist. Although this paper belongs to the prophecy category, it provides a direction for their work. The paper says that when the rotation angle of the double layer graphene changes, electrons may be generated. interaction.

"Idiot."

"Two layers of hexagonal graphene in a honeycomb lattice, if the angle is rotated, it will not happen to produce a flickering effect like ripples?" Yang Xiaoman pointed to the display: "Look at it, is this Moore Pattern?"

"nonsense!"

"When two geometrically regular patterns overlap, this is an inevitable effect."

The voice just fell,

Xu Mang then reacted.

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 changes, the ripples between the light and dark can be seen very clearly, and the smallest repeating unit of the ripples is a rhombus.

Not only that,

Xu Mang also found another strange feature. The bright part is arranged in AA, and the dark part is arranged in AB or BA. With this arrangement...the concept of crests and troughs is not exactly formed.

"Little Man!"

"Are there any relevant calculation equations in the prediction paper?" Xu Mang asked.

"Let me see..."

"Yes!" Yang Xiaoman said.

"give me."

"Oh..."

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

but...

Xu Mang felt that there was a problem with the calculation.

It seems to be wrong.

Because if you follow the above calculation results, it is impossible to make the energy gap of the Dirac cone of two-dimensional graphene and readjust its Fermi velocity.

"Damn!"

"This is a beautiful mistake." Xu Mang sighed and said to Xiaoman: "Xiaoman...the next two days, we may be under more pressure."

"what?"

"Why?" Yang Xiaoman pouted, and said displeased: "I came to Ning City to enjoy it. Now I feel...become your tool man."

Xu Mang smiled and said, "It's you who want to come, but you can't persuade you. What can you do? Forget it... I'll do it alone, because it involves quantum mechanics calculations. You may can not read it."

"Pooh!"

"Why don't you understand?" Yang Xiaoman was not convinced: "What is it?"

"The Dirac equation of quantum mechanics." Xu Mang asked with a smile: "This is a quantum mechanical equation about the relativity of electrons."

"..."

Listening to Xu Mang's explanation, Yang Xiaoman's face was at a loss at this time, what and what was all this.

Xu Mang thought for a while, and said to Xiaoman: "Really...you can rest tomorrow, I can be alone."

"No!"

"I want to accompany you." Yang Xiaoman said stubbornly: "Don't try to drive me away, or you will be killed!"

Xu Mang: (￣△￣;)

finally,

Yang Xiaoman stayed with Xu Mang and became a tool man.

Of course... she doesn't have to do anything.

Be a mascot,

Furnishings,

vase.

In the following time, Yang Xiaoman watched Xu Mang constantly calculating, writing one equation after another, but these equations he did not understand, even the meaning of each symbol above.

"Huh? What is this?"

"The energy gap equation."

"Then what is this?"

"The solution to the positive energy of the Dirac electron unfolds."

"..."

Yang Xiaoman was silent ~www.wuxiaspot.com~ After feeling the change in Xiaoman's mood, Xu Mang put down the pen in his hand and asked with a smile, "What's wrong?"

"I think I'm like an idiot." Yang Xiaoman pouted and said helplessly: "What you write...I can't understand it. When we first met, you were stupid. just now..."

Xu Mang patted his thigh with a smile on his face and said: "Sit up by yourself, I will teach you the relativistic quantum mechanics equations of quantum mechanics for electron motion."

Within a few minutes of sitting on, Yang Xiaoman was wrapped in happiness, and the door of the laboratory was opened.

"Ahem!"

......

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