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Qiao Sen brought Xu You to another laboratory.

"This place also belongs to our experimental group. You can practice it for a few days. After the materials are prepared, you can start the experiment. By the way, there are your acquaintances here. If you have any questions, you can rest assured Ask, don't be restrained."

"Acquaintance?" Xu You asked in surprise.

Xu You thought, he was just a freshman, how could he meet acquaintances in the laboratory.

"Huh? Senior!"

Sure enough, after entering the laboratory, Xu You really found someone he knew.

It was Yuan Dong who guided their experiments when they were in the Wujing national training team.

"Xu You? Why are you here?"

Seeing Xu You, Yuan Dong was also very surprised.

"Ha, Teacher Qiao asked me to come and study."

"Well, Yuan Dong, it just so happens that you are doing experiments on condensed matter, let Xu You follow along and learn. You have known each other before, and you won't be too restrained with each other."

"Okay, I see, Teacher Qiao."

After Qiao Sen left, Yuan Dong's expression suddenly changed.

"Xu You, are you sure you really need me to teach this time? You have already published your paper on PRL, so don't call me senior anymore, just call me Xiao Yuan."

The current Yuan Dong, in front of Xu You, no longer has the haughty expression he had when he was in the national training team.

"Senior was joking, I really don't understand anything about condensed matter. Just do your work first, and I'll take a look at it first. After a while, when you're not busy, I'll ask you for advice."

Hearing what Xu You said, Yuan Dong finally felt relieved.

"Well, it is true that your previous research was quantum physics, which is quite different from condensed matter. But I heard that you went to that conference last time, and you are really awesome. Even the State of Matter The coach of the team, Cao Quanli, was not invited. Your current status is really outrageous."

"Where, it's just that Teacher Wang took me there by the way. I just went to study, and it shouldn't have much to do with that project."

"Come on, with your outrageous ability, you may have to rely on you to manufacture a new generation of quantum computers. Let's be honest, what big project are you going to do this time?"

"Mr. Qiao asked me to learn some procedures of the superconducting experiment."

Xu You knew that some things should not be discussed in detail, so he avoided some key topics.

"Okay, okay, if you don't say it, don't say it. Then watch it carefully, and ask me if you have any questions."

Yuan Dong also knew that he didn't want to ask too many questions, so after teasing Xu You a few words, he continued his experiment.

Xu You looked at Yuan Dong's operations, and probably saw what Yuan Dong was doing now.

"Senior, you are creating a low temperature environment right now."

"That's right, for this experiment, the temperature that needs to be reached is already close to absolute zero, so this kind of liquid helium device is needed. If the temperature requirement is not so low, if it is above 77K, then liquid nitrogen will do."

Because most of the known superconductors can only achieve superconductivity at very low temperatures.

Therefore, in superconducting experiments, the step of creating a low-temperature environment must be inseparable.

"Xu You, look at this tank of liquid helium. It looks very inconspicuous, right? It costs several thousand yuan, but it can only maintain a low temperature for three or four days. Fortunately, our laboratory has a recycling system. The helium can be recycled, otherwise the laboratory will be bankrupted by us sooner or later."

"Why is it so expensive? I thought it would be about a few hundred yuan."

The consumables needed in these laboratories cost much more than Xu You imagined.

And this is only part of the experimental cost.

Roughly estimated, the scientific research funding consumed by a large laboratory in one year is really a huge number.

After completing the manufacture of the low-temperature environment, Yuan Dong began to prepare for the measurement.

"Condensed matter physics sounds very high-end. In fact, the content of the experiment is basically to measure the resistance continuously. Of course, it is not just a simple resistance measurement. You can add a magnetic field to measure the resistance, lower the temperature to measure the resistance, and add gate control. Measure the resistance, apply pressure to measure the resistance. After all these are measured, change another material and continue to measure the resistance.”

Yuan Dong's statement sounds a bit negative.

But Xu You thought about it, and it was indeed rough and unreasonable.

Although the properties studied in condensed matter are not just conductivity.

But conductivity is indeed one of the most commonly studied properties.

Xu You did not lose interest in the experiment because of Yuan Dong's words.

These principles sound very simple.

But in actual operation, there are still many skills and details in it.

Yuan Dong is not an idle person either, he used to be the same as Xu You, he was recommended by Wu Jing, and even entered the Wu Jing national team.

After the undergraduate course, he was able to continue his postgraduate studies smoothly, and he was considered a very good student in Ji University.

After staying by Yuan Dong's side for a few days, Xu You learned a lot, and basically mastered the procedures and methods of superconducting experiments.

On the other hand, Xu Zhou's speed was much faster than expected.

The first batch of aluminum cluster materials has been produced and mailed to Jossen.

"Xu You, the first batch of aluminum cluster materials has arrived, you can start preparing for the experiment. I will arrange Yuan Dong to help you look over it. If you have any questions, you can also contact me directly."

"Okay, Teacher Qiao, I see."

With the newly arrived materials, Xu You put into the laboratory and started the measurement work.

"After a long time, it turns out that you are also here to measure the resistance."

Yuan Dong saw the content of Xu You's experiment, but didn't know that it was actually a suspected superconducting material discovered by Xu You himself.

In fact, Yuan Dong couldn't figure it out, and it was very normal.

Generally speaking, the superconducting properties of superconducting materials are discovered in laboratory measurements, rather than being determined before the measurement.

Like Xu You, it is very rare to predict superconductivity through theory first, and then measure it.

"Xu You, what material are you going to test?"

"Aluminum, and some special aluminum." Xu You said truthfully.

"What is there to measure aluminum, someone has already studied it. Forget it, you can test yours. If you have any questions, call me, and I will do my experiment first."

For Xu You, Yuan Dong is still very at ease, and basically doesn't need to take care of himself.

It's much easier to lead than those undergraduates who are finishing their senior year.

After that, the two each carried out their own experiments.

As Xu You said, what Xu You first measured was ordinary bulk aluminum metal.

Although the superconducting properties of bulk aluminum have long been studied thoroughly.

But as a control experiment, it still has to be measured first.

Xu You followed the measurement steps taught by Yuan Dong before, first creating a low-temperature environment, and then measuring the resistance.

Sure enough, when the temperature was low enough, Xu You discovered a miraculous phenomenon.