Outside the building gate of the Superconducting Research Center of Beijing University, Ning Jing met her classmate Yan Jiamin, who greeted her with a smile.±,
"It's almost time. The experiments have been completed. Just wait for the results to be analyzed." Jing Jing said to Yan Jiamin with the same smile.
Yan Jiamin said with envy: "You are really good. Among our classmates, you are probably the first one to complete your graduation thesis, right? And I estimate, no, I am sure that your thesis will definitely win the award from the Ministry of Education this year."
Think about it about excellent doctoral theses, how many of them can we have in the country who have published them in Nature during their Ph.D. stage?"
"I was just a blind cat caught up with a dead mouse." Ning Jing said modestly. She knew in her heart that she was able to make so many achievements in iron-based superconductivity, but it was definitely not as simple as a blind cat running into a dead mouse. Iron-based superconductivity
This direction was chosen by Qin Hai for her. Qin Hai's amazing foresight ability is beyond the reach of many "old cats" in the world.
It is difficult to get a PhD in superconductivity, because there are countless masters in the world working in this direction. It is not easy for a PhD student to make something unique and able to withstand scrutiny. Yan Jiamin is doing copper
Theoretical research on base superconducting materials has already been cultivated several times in this field. If we continue to do so, we can only do some work to fill in the gaps. It is not difficult to publish one or two private-level papers, but it requires
It was not enough to support a doctoral thesis. Because of this, Yan Jiamin was in pain all day long. He dreamed that he would suddenly discover a problem that no one before him had paid attention to and quickly complete the doctoral thesis.
In contrast, Jing Jing is much more relaxed. She is the first researcher in the world to discover iron-based superconducting materials. She has a lot of directions that she can work on, and she can make extraordinary things in each direction.
Beautiful thesis. After several selections, she decided on the magnetic flux vortex state of iron-based superconducting materials as the topic of her doctoral thesis. After a period of hard experiments and analysis, she has established a perfect model. Now
Just wait until the text is organized before you can officially submit it.
Among the doctoral students at the same level as Ning Jing, several have already shifted their research direction from copper-based superconductors to iron-based superconductors, and have quickly achieved very good results. Yan Jiamin is still working on copper-based materials.
That part. Over the past few years, the road has become narrower and narrower. If this continues, she may even have problems graduating.
"Jia Min, if that doesn't work, why don't you switch to iron-based materials? Teacher Chen has a lot of research topics here. If you just follow any topic, you can complete your doctoral thesis in a year or two." Ning Jing said enthusiastically.
suggested.
A trace of gloom flashed across Yan Jiamin's face. She shook her head and said, "I told my tutor about this idea. She firmly disagreed with my making iron-based materials and said that copper-based materials are the right way. Iron-based materials have so far
The critical temperature is still far lower than that of copper-based materials, which makes it impossible to have a future."
"This is not..." Ning Jing almost wanted to say the word "nonsense", but finally remembered that Yan Jiamin's tutor Zhang Shengying was also her teacher. As a student, she could not accuse the teacher like this, so she could only swallow the words behind her.
"Theoretical research on copper-based materials has now reached a dead end. It is almost impossible to obtain copper-based superconducting materials with higher critical temperatures through theoretical research. The theory of iron-based materials is now very clear. At high temperatures
There is a lot that can be done about the microscopic mechanism of superconductivity. How can Teacher Zhang confuse right and wrong like this?" Ning Jing said. At the end, she still used a relatively weak word to express her dissatisfaction with Zhang Shengying.
Copper-based materials are made of copper oxide as the main body and doped with other elements to form a material with superconducting properties. This material is essentially a ceramic material, and research on the conductive properties of ceramic materials has always been difficult.
Therefore, the theoretical research on copper-based superconductivity has been in a state of divergent opinions for a long time. This is what Ning Jing means when he says that research in this area has reached a dead end.
If Yan Jiamin was not a doctoral student facing the pressure of graduation, then there is nothing wrong with devoting himself to the research of copper-based materials. After all, it takes ten years to sharpen a sword. In the end, he may be able to grind out something interesting. But reality and ideals are in conflict.
, Yan Jiamin does not have so much time to wait for a result that is not yet visible. Zhang Shengying did not let her do iron-based superconducting, but left her on copper-based superconducting, which is a bit unkind.
Yan Jiamin herself is also mute and unable to express her suffering. She is already a 28-year-old young woman and already has a boyfriend she likes. The obstacle that stands between her and her boyfriend now is that she has not graduated yet.
Future workplace. Young people in this era are very pragmatic. If she cannot graduate as scheduled, then the future will be unpredictable.
"I really regret now that I shouldn't have followed Boss Zhang." Yan Jiamin lowered his voice and said in a complaining tone. I don't know since when, the graduate students in the university have uniformly changed their mouth to call their supervisor the boss, not only behind their backs
In this way, sometimes they will call themselves boss in front of the mentor, and the mentor usually accepts this title.
"It's too late to change mentors now." Ning Jing said, "Since your boss insists on letting you make copper-based materials, I'm afraid you can only continue doing it. It's not that you can't make things with copper-based materials, but you may need to transfer
Some ways of thinking.”
"I know, what my boss is doing now is a bit outdated... Jing Jing, what are you saying, isn't this all caused by your boyfriend!" When Yan Jiamin said this, he glared at Jing Jing pretendingly, but there was a look on his face.
With a wry smile.
Yan Jiamin’s tutor, Zhang Shengying, used to be considered one of the authorities in superconductivity at Beijing University, but now she seems very lonely. The reason is that Zhang Shengying does not want to succumb to Qin Hai’s request and is unwilling to spend some time and energy.
He was doing research on the industrialization of superconducting materials, and had a dispute with Qin Hai because of this.
Qin Hai is the funder of the Superconducting Research Center. Naturally, he will not be polite to people who are unwilling to cooperate with him. With a notice, Zhang Shengying was placed in a separate book. In terms of experimental conditions, funding, etc., everything was done.
Control. Everyone knows that superconductivity is a money-burning direction. Without money, it is difficult to achieve achievements based on theoretical research alone. Compared with Chen Zongze, Du Xiangwang, Cao Guolin and others in the same teaching and research department, Zhang Shengying
The difference in experimental funding was huge. Over the past few years, academic ability and academic status have declined significantly.
Zhang Shengying does not want Yan Jiamin to switch to iron-based materials, which may not mean that she does not have a vindictive mentality with Qin Hai. Iron-based superconductivity is a direction pioneered by Ning Ning, and it is also a direction that Qin Hai strongly supports. Zhang Shengying cannot understand Qin Hai and hates it.
I hate the black house, the tranquility, and the iron-based superconductor, so whenever I hear the words iron-based superconductor, my nose is not a nose, and my eyes are not eyes, and I get angry.
Students may not necessarily know much about their tutor's academic achievements, but they will never miss the gossip about their tutor. Yan Jiamin witnessed Zhang Shengying and Qin Hai bickering with her own eyes, so she naturally knew the reason. Thinking that she had followed this
She just felt so sad that a tutor had so few benefits and had to delay her graduation and even her entire future.
Ning Jing also knows these things. As someone who firmly stands on Qin Hai's side, she has no good impression of Zhang Shengying. She feels that it is reasonable for Qin Hai to use a money stick to deal with the other party. However, Yan Jiamin was implicated because of the sanctions against Zhang Shengying.
, Ning Jing feels a little uneasy about his conscience.
"Jia Min, I have an idea, I don't know if it's suitable or not," Jing Jing said.
Yan Jiamin said casually: "If you have any ideas, just tell me, I don't mind."
From Yan Jiamin's point of view, Ning Jing's ideas are meaningless to her. Men are afraid of entering the wrong profession, and women are afraid of marrying the wrong man. What a doctor fears most is marrying the wrong mentor. Yan Jiamin feels a little resentful now.
Mentality, no matter how strong this resentment is, it can't change anything.
Jing Jing said: "Jia Min, you also know that I have attended several academic conferences abroad, and my friend Qin Hai also has some contacts with some authorities in the international materials industry. If you don't mind, I can help you contact him.
Let’s take a look at some of the more authoritative scholars in the world who work on steel-based materials, such as Muller, Bernoz and others. If you go to them as an exchange student for a year and complete your doctoral thesis there, I don’t think Mr. Zhang will do it.
What can I say?"
"How can exchange students be so easy to contact?" Yan Jiamin said dubiously.
Jing Jing smiled and said: "Qin Hai still has a bit of face. If you ask him to say a word, he will probably be able to do it. Jia Min, if you have such an idea, I will tell Qin Hai right away."
"Of course I have this idea." Yan Jiamin confirmed anxiously. The plan mentioned by Ning Jing was actually something she had considered, but she just couldn't find a chance to communicate it. Now that she heard Ning Jing say so definitely, she couldn't bear it.
She jumped up and down. She was an overseas exchange student for a year, and she was going to be an exchange student with world-class masters like Muller and Bernozzi. This was a once-in-a-lifetime opportunity. With this opportunity, she could not only
Writing an excellent doctoral thesis will benefit countless future developments.
"Okay, I'll just talk to him." Jing Jing nodded and said. She did this purely out of apology to Yan Jiamin, but it was inconvenient to say it at this level.
"Thank you, Jing Jing, you are really my best sister." Yan Jiamin put her hands around Jing Jing's neck and said exaggeratedly.
Before Jing Jing could say anything, Yan Jiamin suddenly seemed to remember something, and her expression suddenly changed. She looked at no one around, then put her mouth to Jing Jing's ear, and said in an inaudible voice: "By the way, Jing Jing"
, I forgot one thing. My boss... seems to be planning to make some fuss about your graduation." (To be continued...)