Xueba's Sea of ​​Stars

Chapter 292 High Temperature Superconductivity
"Although we experimented many times and got the same results many times, we were relieved when the research team at Columbia University received the news that the experiment was repeated successfully."

Recalling what happened after the experiment was successful, Cao Yuan couldn't help but smile.

Wu Bin nodded: "It's natural to be nervous. After all, since the discovery of graphene, this field has never been so exciting."

Cao Yuan: "Actually, it is because the process of repetition is more difficult than expected, and the news from other experimental teams is also slower than we thought. However, after Professor Corey's team successfully replicated this success, there are three other teams immediately. It also confirmed its reproducibility."

After listening to Cao Yuan's words, Wu Bin suddenly remembered something and said: "In addition to verifying the results, there are also many people who directly started to study the results of your experiment? I remember seeing quite a few attempts to explain this kind of experiment on arXiv. Phenomenal articles."

"That's right." Cao Yuan nodded, "Many teams are using their methods to adjust the interlayer structure of other two-dimensional materials, looking for other forms of electronic interaction."

Wu Bin: "To put it simply, everyone is trying to stack their favorite materials and rotate them, right?"

Cao Yuan raised his glasses after hearing this: "Yes, but now we need more information to determine whether the mechanism that induces double-layer graphene to achieve superconductivity is the same mechanism behind high-temperature superconductors. Unfortunately, so far, apart from the recognized There is absolutely no consensus among theoretical physicists that the system is worth studying."

After speaking, Cao Yuan glanced at Wu Bin and asked, "Did you find anything?"

"Me?" Wu Bin thought for a while and said, "How should I put it? I think the principle of superconductivity in rotating double-layer graphene is similar to traditional iron-based superconductivity. I have read information on this recently. But so far there has been no progress.”

Cao Yuan glanced at Wu Bin in surprise, then smiled and said, "Hahaha, I still have a good eye. In fact, we have never emphasized that we have made the so-called 'high-temperature superconductivity'. It's just that the media likes to brag about it. After all, 1K The transformation is not high, the similarity you mentioned is the shining point in this experiment."

After speaking, Cao Yuan suddenly stood up and walked to the blackboard in the conference room, picked up a piece of chalk and began to write while saying: "Actually, when we were studying high-temperature superconductivity in copper oxides, we found that after improving the experimental conditions and In the case of the device, a small amount of doped Mott insulator phase will undergo a superconducting phase transition, and a similar phenomenon has been observed in several samples."

Looking at the values ​​written by Cao Yuan on the blackboard, Wu Bin couldn't help but fell into thinking, and his five fingers kept tapping the rhythm on the table.

When Cao Yuan finally put down the chalk, Wu Bin also walked up to the blackboard and picked up a chalk and said: "Although the superconducting transition temperature is about 1K, it is not high, but due to the extremely low flow ion concentration of graphene under the aforementioned conditions , so the transformation temperature is actually very high..."

At this time, at the door of the meeting room, Qin Simeng who was secretly listening to the two talking through a crack in the door closed the door silently.

"What are they talking about?" Li Yan, who was playing with his mobile phone behind him, raised his head and asked.

"I don't understand..." Qin Simeng had an expression of who am I and where am I.

"Hahaha." Li Yan snickered twice: "Anyway, I don't listen, it's not worth being hit by two monsters."

Qin Simeng let out a long breath: "I was wondering if these two people would solve some world's problems just by chatting. I'm also a witness."

"Forget it~" Li Yan stuffed his phone back into his pants pocket: "It's the right way for mortals like us to go to class."

"That's right." Qin Simeng sighed and walked out with Li Yan.

When they came to the hall, a member of the student union saw Qin Simeng walking towards him and immediately came over to greet him: "Hey, what a coincidence, what's wrong with you coming to the student union?"

"Well, look at the gods." Qin Simeng nodded with a smile.

"Oh, I just heard that, it's Senior Cao Yuan who's back, right? I'm going to get a mask later." After saying that, the boy suddenly shouted: "By the way, I went to watch your debate two days ago. It’s over, it’s been great.”

"Thank you." Qin Simeng nodded politely.

"There is one more thing." The boy said and took out two tickets: "I bought two tickets for Turandot the day before yesterday, but the friend who originally agreed to go with me gave me a dove. I know you are also very interested in opera. Yes, why don't we go together? It's hard to get a ticket, it's a pity to waste it."

Although the boy's tone was as casual as possible when he spoke, there was still some tension in his voice.

After hearing this, Qin Simeng replied with a smile: "I'm sorry, I have a lot of homework to make up in these two weeks, I'm afraid I won't be able to spare this time."

"That's it..." The boy's expression was a little disappointed, but he immediately adjusted and said, "That's fine, I'll ask someone else."

"Okay, thank you for your invitation." After Qin Simeng finished speaking, he turned and walked towards the door.

Looking at Qin Simeng's leaving figure, the boy sighed, stuffed the two tickets back into his pocket and left.

'Tsk... tragic. Li Yan, who was standing at the door, couldn't help but shake his head and watched the warrior who dared to take action leave.

After all, there have been too many seniors who were politely rejected by Senior Sister Qin before, and those who still dare to act now can be called "warriors".

"Do you have any other plans for Senior Cao Yuan tonight?" Qin Simeng walked up to Li Yan and asked.

Li Yan shook his head: "I don't think so today. I guess the school can imagine that the two of them would have a lot to talk about when they met. There will be a dinner tomorrow, but it will be senior Cao Yuan having dinner with his former teachers."

"Oh." Qin Simeng nodded, "Then I'll go to class first."

"Okay, goodbye, senior." Li Yan waved to her.

……

In the evening, Qin Simeng returned to the conference room where Wu Bin and Cao Yuan were, and knocked on the door.

"Hey, sister? What's the matter?" Wu Bin, who came to open the door, said in surprise.

Qin Simeng smiled and carried the bag in his hand to Wu Bin: "I thought that if you were chatting so seriously, you might miss the meal time, so I brought you two meals."

Wu Bin, who smelled the aroma of rice, did feel a little empty in his stomach, and said happily: "Thank you, senior, for being so considerate." Then he turned back to Cao Yuan and said, "Senior Cao Yuan, do you want to eat something?"

"I'm a little hungry." Cao Yuan nodded and walked over, glanced at the lunch box in Qin Simeng's hand and said, "I'm sorry."

"It's just a matter of convenience." Qin Simeng said, taking out the food in the bag and putting it on the table.

While setting it up, Qin Simeng turned her head and glanced at the blackboard, and found that it was filled with formulas that made her confused.

"It always feels like he's the only one who went to a real university..."

(End of this chapter)