Chapter 270 The Final Frustration
The news that Zhang Wei was going to do a new project spread throughout Tsinghua University overnight.
The Department of Physics immediately became crowded. Not only current master's and doctoral students, but also several postdocs with projects in hand came to inquire about the situation and wanted to participate. There were even professors who came to ask Du Jiahai if he needed help, obviously hoping to get a signature on his paper.
This made Du Jiahai a little overwhelmed. He didn't expect Zhang Wei's reputation to be so big. Even before the scientific research funds were approved, it had already become the most popular project at Tsinghua University. His original topic of the quantum anomalous Hall effect suddenly became a hot topic.
It is also because Zhang Wei’s achievements in the past have been too brilliant, and the several projects he has conducted are all world-class scientific research results. Zhang Wei has earned enough fame, and the entire research team has followed the chickens and dogs to heaven.
Some of Zhang Wei's senior brothers and sisters when he was doing nucleoside modification have secured their doctorates, and some have found satisfactory jobs. Especially that senior sister, after graduating from graduate school, she was directly hired by a well-known pharmaceutical company with an annual salary of 300,000 yuan. The high price please leave.
This is 2006 after all, and 300,000 is enough for a down payment in a first-tier city. Even for a graduate student from Tsinghua University, an annual salary of 300,000 yuan is a figure that can only be met but not sought.
Later, the genetic scissors made by Zhang Wei became more famous than nucleoside modification. Several researchers in the same group were admitted to top universities in the United States, and they also had scholarships.
For students from Tsinghua University, studying in the United States is the ultimate dream. No matter whether you develop in the United States or come back to build the motherland, you always have to go to the top universities in the United States to get a layer of gold. Otherwise, you will be sorry for studying in the United States at Tsinghua University. The name of the preparatory class.
So many people are looking forward to Zhang Wei quickly starting a new project. If he can participate in it, whether he studies abroad in the future or continues his studies in China, it will be smooth sailing, and he can find a high salary with a minimum salary. work.
Who would have known that Zhang Wei suddenly went off to study economics and did not enter the laboratory for a year.
Now that I heard that Zhang Wei is going to do a new subject again, I must seize this once-in-a-lifetime opportunity. If I miss this time, if Zhang Wei decides to study something else on a whim, I don’t know how long he will have to wait. Only then can we have the next topic.
For these graduate students, being able to join Zhang Wei's research group means that their future is bright, at least they can prosper in domestic universities and research institutions.
If you are lucky and can get a signed paper, the offer from the top universities in the United States will basically be guaranteed.
As a result, Du Jiahai's office was instantly crowded. Not only graduate students from the physics department, but also graduate students from several other related departments came to join in the fun. Soon, resumes were piled all over the desk.
Du Jiahai has never fought such a rich battle!
When I was working on a project before, I was not my student, so I couldn’t direct it at all, and I had to be picky about the work.
Even if you are your own student, you have to check in regularly, show more concern, and use your emotional cards so that the student can work wholeheartedly.
Sometimes students mess up and cannot be scolded. As a tutor, I have to work part-time as a psychologist to provide psychological counseling to students.
How good it is now, the project application has just been submitted, and there are already such a large group of people asking for support. High-level graduate students can choose whatever they want, and they are still willing to be the best!
As the old movie goes, we are not cows and horses, we are human beings!
Nowadays, there are special marks in these resumes: If you don’t treat me like a cow or a horse, you are not a human being!
These people also work hard for a good future.
While Du Jiahai was looking at resumes and selecting people, the phone on his desk also rang. It was Fang Shaoyun.
"Director, what are your instructions?" Du Jiahai answered the phone.
"Good news, the scientific research funds for your topic have been approved."
"So fast? I thought I had to wait a few more weeks!" Du Jiahai then asked: "How much has been approved this time? ?”
Under normal circumstances, the approved scientific research funds are discounted. Du Jiahai thought that for such a long-term project, a 30% discount is already very good, and a 50% or 40% discount is already very good. If so, it’s acceptable.
Professor Fang said: "The scientific research funding you applied for is worth every penny, and the full amount has been approved!"
"Full amount? You mean full amount!" Du Jiahai For a moment, I couldn't believe my ears.
"What? You're surprised? Don't be surprised, this is Zhang Wei's project, and no one dares to block his funding!"
......
Du Jiahai was lamenting that Zhang Wei really has the cards. , Zhang Wei chatted with the autistic person about the research on the graphene Hall effect.
"This is the experimental plan. You should familiarize yourself with it first. Once the research officially begins, you will be fully responsible for this project. If you have any problems that are difficult to solve, come to me." Zhang Wei handed the plan to you. Autistic people.
“Brother, you are going to be the hands-off shopkeeper!” Lu Yunxiang said from the side.
"Nonsense, I'm so busy, how can I have time to spend time in the laboratory every day? Just show up every now and then. And when it comes to doing experiments, Brother You is better than me!" Zhang Wei said.
Lu Yunxiang came over and followed the autistic man. It seemed that Zhang Wei had formulated the experimental plan.
“Can you understand?” Zhang Wei asked.
"Just do it! I've only seen many of the experimental methods mentioned in books." Lu Yunxiang replied.
The autistic person asked: "Are you going to use the Vanderburg method to measure the Hall effect of graphene?"
Zhang Wei nodded: "The Vanderbilt method is used to measure the Hall voltage and longitudinal resistance of the graphene sample to determine its Hall coefficient, carrier concentration and mobility and other electrical transport parameters.
It’s just that the magnetic field and temperature need to be considered, so multiple measurements must be made under different magnetic field strengths and temperatures to explore the changing rules of the graphene Hall effect.”
“If you only use the Vanderbilt method to measure. , It shouldn’t be enough.” The autistic man shook his head.
"What do you think?" Zhang Wei asked.
“I think an extremely low temperature environment may be used.”
"You have to add a strong magnetic field, so that you can observe whether there are phenomena such as quantized Hall conductance platform and fractional filling factor."
"Have you thought about it all?" The autistic person raised a rare question .
“I’m pretty reliable when it comes to experimental ideas.” Zhang Wei paused and then said, “Are you okay with the equipment needed for this experiment?”
"I'm familiar with Raman spectrometers and electron microscopes." Although the autistic man's tone was calm, there was a sense of confidence.
“I’m not talking about this, but the photolithography process. We need to use photolithography technology to make a mask on the graphene sample to define the electrode pattern. Deposit the metal through electron beam evaporation or sputtering. The electrode material is removed through a stripping process to form an ohmic contact electrode.”
"I should be able to operate it. If not, I can learn it by practicing a few more times." The autistic man nodded.
“There are actually many difficulties in each step of this experiment. The electrode production I just mentioned can only be regarded as the second step. First, high-variety graphene samples must be screened to ensure that they are as defect-free as possible. and no pollution, so as to ensure the accuracy of the results. With the sample, we must also pay attention to the thickness and uniformity, which will also affect the experimental results," Zhang Wei continued.
"Selecting samples requires concentration and patience." The autistic person replied with a few words.
"That's right. Compared with concentration and patience, who can compare with you!" Zhang Wei sighed lightly.
Autistic people can stare at the wall for a whole day. This guy's patience is particularly suitable for surviving an eagle. For such boring and important work as screening samples, no one in the entire Tsinghua University can compare with an autistic person.
Zhang Wei continued to remind: "During the experiment, special attention should be paid to the environment and ensure that the temperature of the experimental environment is stable, because temperature fluctuations may affect the electrical transport properties of the material, thereby affecting the measurement results of the Hall effect.
< br>In addition, the current must be controlled to maintain stability and avoid current fluctuations from affecting the measurement results. Moreover, we must also consider the influence of side effects, such as the Eitinghausen effect and the Nernst effect. ”
"I took note of it." The autistic man nodded again.
"The last step is the processing of experimental data..."
The autistic man interrupted Zhang Wei: "Is this also mine? This should be what the project leader should do! ”
"Your math is better than mine!" Zhang Wei said.
“But you have a Fields Medal.” said the autistic man. "Actually, I bought that Fields Medal!"
"Brother, where did you buy it? I want to buy one too." Lu Yunxiang came over again.
“Can’t you see that I’m being modest?” Zhang Wei glared at Lu Yunxiang with a look of disgust, and then said, “I’m talking about business with your brother, specimen. You go and have fun, and don’t make trouble!”
"Brother, why don't you show me the manuscript of the next issue of Giant, and then I won't cause trouble!"
"It's on the E drive of my computer, go check it out yourself!" Zhang Wei said with a look on his face I reluctantly agreed, and then discussed the topic with the autistic person.
“This project may take more time, so you have to be mentally prepared. Maybe you will do this project in the first two years of your postgraduate studies.” Zhang Wei continued.
"Two years, not bad. Professor Du may have to do it for five years." The autistic man said.
"Yes, he is doing research on the quantum anomalous Hall effect. This project requires trial and error. If the results are produced in five years, you can go to the temple to fulfill your vow." Zhang Wei nodded. .
"Five years? Brother specimen, you can even graduate with a Ph.D.!" Lu Yunxiang interrupted.
......
Professor Du Jiahai is taking the lead in this scientific research project, so Zhang Wei does not need to worry about it at all.
Zhang Wei also gave the autistic person full responsibility for experiments on the graphene Hall effect.
The experimental operation of this study is still relatively difficult. Fortunately, autistic people are good at experiments. With his talent in experimental operation, he should be able to handle it.
In addition to the difficulty of operation, every process of this experiment requires patience and meticulousness. This is the least of Zhang Wei's worries. What autistic people lack most is patience and meticulousness. At least in the past four years, Zhang Wei has also I have never seen an autistic person get angry in a hurry.
What Zhang Wei is most worried about is the communication problem of autistic people.
After four years of college, although the autistic person’s Asperger syndrome has improved, it is still difficult to communicate with strangers. Under such a situation, it was okay for him to be bored in front of the test bench, but Zhang Wei was really worried about letting him lead a project team.
Fortunately, there is Du Jiahai as a mentor, who can support autistic people.
If an autistic person is in trouble, Du Jiahai will definitely help him. Who makes him the mentor of autistic people!
What's more, as the general person in charge of the scientific research project, Du Jiahai did not want problems to arise in the research.
......
Winter vacation is coming, but Zhang Wei is not in a hurry to go home, but decides to stay in the capital for a few more days.
Winter in northern coastal cities is not livable. The air is humid, the weather is cold, and the mornings are foggy. In the years when pollution was more serious, the air was not much better than in inland cities.
Although the smog in Beijing was quite serious in 2007, for Zhang Wei, there was nothing to do except eat fresh seafood every day when he went home early. It was better to stay in Beijing and still Can take care of one's own business.
After lunch, Zhang Wei came and sat in front of the computer and started refreshing the YouTube web page.
Finally, the video he wanted to see appeared.
A man with gray hair, some baldness, wearing rimless glasses, a black T-shirt on his upper body, and jeans on his lower body appeared on the video screen. He put his hands behind his back and began to speak:
"In 1984, we released the Mactinosh computer, which not only changed Apple, but also changed the entire computer industry!"
The man raised his hands in front of him and continued: "In 2001, we released the first An iPod, it not only changed the way we listen to music, but also changed the entire music industry.
"Today, we are releasing three products of this caliber. The first is a touch-controlled widescreen iPod! The second is a revolutionary mobile phone! The third is a breakthrough Internet tool.
Well, these three things are not three separate devices, but one device, and we call it iPhone! Today, Apple is going to reinvent the mobile phone, and this is it!”
< br>At this time, Lu Yunxiang opened the door and walked into the dormitory. He came next to Zhang Wei and asked, "Brother, what are you looking at? Hey, isn't this man Steve Jobs? He feels much older. His hair is so white. ”
“This is Apple’s product launch yesterday, to be precise, it was yesterday in the United States. The video has just been uploaded, and it’s still hot!” Zhang Wei was still staring at the screen, watching Jobs. Performance.
"Has Apple released any new products? A new iPod?" Lu Yunxiang asked nonchalantly while taking off his coat.
Not long ago, Apple just released an upgraded version of iPod5. Compared with the old model released in 2005, except for a larger memory and a smaller battery, there is no improvement at all. Therefore, this has also disappointed many Apple fans. Some people already feel that Apple has exhausted its talents.
Unexpectedly, Apple made a big move at this press conference. The advent of the iPhone not only reinvented the mobile phone, but also redefined human life.
"Apple has released a revolutionary product this time. Do you want to come over and take a look." Zhang Wei greeted.
"Revolutionary product? Is it so awesome? What is it!" Lu Yunxiang immediately came forward.
At this time in the video, Jobs has already begun to demonstrate the functions of the iPhone.
"Let me ask, is this a phone? There are no numeric buttons, just a touch screen? Wait a minute, he is operating it directly with his hands, not a stylus!" Lu Yunxiang looked surprised.
The iPhone is not the first touch screen mobile phone. As early as the late 1990s, some brands launched touch screen mobile phones.
But the touch screen mobile phones at that time all used capacitive screens, which were soft screens, so they needed a stylus to operate.
Next, Jobs began to demonstrate the image zoom function, the function of sending and receiving emails, and the function of web pages. ”
“This function is amazing! ”
"Damn it, is it so awesome!"
"When will this thing be on the market? I want to buy it!"
While Lu Yunxiang was looking at it, he kept exclaiming in surprise.
Finally, after more than an hour of video playback, Lu Yunxiang slumped in his chair with a confused expression.
"What's wrong? Mr. Lu, a disappointed expression. Don't worry, you can definitely afford this thing. I estimate that this thing only costs six hundred dollars. For you, Mr. Lu, Isn’t it just drizzle!” Zhang Wei said with a smile.
"It's not about money, I just think that American technology is so powerful that it can invent such powerful things." Lu Yunxiang sighed.
“Feeling frustrated?” Zhang Wei asked with a smile.
"A bit. I knew there was a gap between us and the United States, but I didn't expect the gap to be so big. Our domestic mobile phones can't even make a color screen, but the Americans have already come up with such high-tech gadgets! "
"Can the high-rise buildings that Li Hongzhang saw when he visited New York be more frustrating?" Zhang Wei smiled slightly and continued: "Don't be discouraged, we will definitely be able to catch up in at least twenty years. Maybe this will be the last consumer product invention in the United States that can make you feel frustrated!” Turn on the phone, then log in to QQ and open the web page.
"Holy shit!" He suddenly shouted.
"What's going on? I was so startled that I was shocked!" Zhang Wei complained.
“My food was stolen!” Lu Yunxiang stared at the computer screen, which showed Happy Farm.
(End of this chapter)