NTU, Physical Materials Research Building, in a research room.

In recent years, his research topics have shifted from condensed matter physics and high-energy physics to the structure and physical properties of low-dimensional materials, as well as spintronic materials.

The preparation technology of tungsten dielenide materials, a low-dimensional material, was a new topic he opened last year.

However, the material is actually a bit like studying mathematical conjectures, either relying on time to accumulate experimental material data, or relying on inspiration and luck.

However, in the current material industry, there are very few results by chance, and most of the material achievements rely on continuous experiments and continuous elimination of errors in one item before a little result can be developed.

This is true all over the world.

Therefore, countries that started early in the field of materials will have a great advantage, because of the relationship of time, these countries have accumulated enough data in their hands.

"Mentor, the results of the experiment are out, but they are not ideal."

"We still can't find a way to make tungsten diselenide form a nano-scale monolayer structure on silicon oxide wafers or optical sapphire wafers, and the special crystalline state formed during the combination process is too difficult to calculate, or impossible to calculate at all."

"At least at the moment, we don't have an accurate data to indicate that we can restrain it, which is too difficult, maybe we should ask the school for help and see if they can arrange for two professors or doctoral students in this area to come and help."

In the laboratory, Fan Pengyue straightened up, rubbed his somewhat sour eyes and said.

He is currently the oldest disciple under Chen Zhengping, and has been following him for more than four years, so it can be said that he has been following him since his mentor turned his research goals to materials.

The current project of "Tungsten Selenide Vapor Deposition on Silicon Oxide Wafers or Optical Sapphire Wafers to Construct Single-Atom Layered Nanostructured Materials" is also his PhD graduation project.

But now they are stuck, and they have been stuck for more than a month or two, and they have been stuck for half a year on how to pave tungsten diselenide.

Various methods have been tried, but none of them have succeeded.

"What about the experimental data? Show me first. ”

Chen Zhengping got up and took a stack of printed materials from Fan Pengyue's hand, on which were various undulating images and dotted and line separation structure paintings, as well as various identified data.

Looking through the information in his hand, Chen Zhengping also had a headache, judging from the information, the situation is just as his current eldest disciple Fan Pengyue said, they can't find a way to smoothly lay tungsten diselenide in a monolayer lattice.

This is the biggest problem, and in a way, his eldest disciple is right, maybe he should find a helper from the math side.

After all, when it comes to mathematical calculations, it's not his strong point, but who should he invite?

Professor Zhou Hai? Or Professor Lin Xing'an?

"By the way, Master, didn't you have a very powerful disciple this year? Proving the world-class mathematical conjecture, how about asking my junior brother to help me first? ”

When Chen Zhengping was thinking about who to find to help, Fan Pengyue's voice sounded again, which made his eyes light up.

That's right, why did he forget Xu Chuan, he can prove world-class conjectures, and his mathematical skills have surpassed more than 90% of mathematicians, maybe he can do it.

"Well, I'll give him a call and see what he's up to now." Chen Zhengping answered and took out his mobile phone.

"Hey, Mentor."

The phone was connected, Xu Chuan's voice came from the other end, and Chen Zhengping asked, "Hey, Xu Chuan, where are you now, is it convenient?" ”

"What's the matter, mentor, I'm in the dormitory, is there something going on?"

"Then please come to the Materials Research Building, I have a math problem on my project and need a mathematician to help."

"Oh, okay, I'll be right over."

"Well, don't worry, you know where the materials research building is, right? Forget it, you wait in the dormitory, I'll ask Fan Pengyue to pick you up. ”

"Don't bother Senior Brother, I know the location, just let him pick me up downstairs in the Materials Research Building, I'll come."

"Okay, then I'll wait for you here."

The phone hung up, Chen Zhengping looked at Fan Pengyue, and before he could speak, Fan Pengyue got up.

"I'll go down and pick up the little junior brother."

......

After receiving the call from his mentor, Xu Chuan immediately got up, washed his face and rushed to the materials research building.

Although he used to work as a laborer, it was a good opportunity for him to get in touch with materials science in advance.

Time has come to this point, and the butterfly effect brought about by his rebirth has become more and more obvious, just like today's mentor asking him for help is something that has never happened in his previous life.

According to the trajectory of his previous life, he will have to wait until this time next year to get into the first contact with materials.

Now it's almost a full year ahead.

Soon, Xu Chuan rushed to the materials research building and saw the 'master bear' Fan Pengyue waiting here.

This is his nickname, because the long man is tall and strong, and his hair is thick and thick, not like an academic, but like a black bear.

In addition, there is a junior brother who has a problem with his accent and habitually pronounces his brother as a bear, so the little junior brothers behind them all call him Master Bear.

"Master ~ Bear ~"

Xu Chuan stretched his tone and shouted with a smile, ushering in a roll of Fan Pengyue's eyes.

"The boy also joined in the fun, the tutor told you something, I'll take you up."

"I said there is a material that needs to be processed, but what kind of material are you working on?"

Xu Chuan asked with some curiosity, he really didn't know much about the research direction of his mentor Chen Zhengping for 15 years.

After all, it was more than a year later when he came into contact with the material, and the things he studied at that time should be different from now.

"The teacher's turn you know, recently we are working on a low-dimensional material, tungsten diselenide, which has come to the final stage, but in the material data processing of this piece of card master, we need a 'big ~ mathematician' to help."

Fan Pengyue said with a smile, and raised his voice a little more on the great mathematician, which was a response to Xu Chuan's previous call of 'Master Bear'.

........