In Huo Tongqing's Alloy Demonstration Department, Chong Baiyu was fiddling with a few metal blocks that looked like discarded materials. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info It seems to have been forcibly torn off a larger metal embryo by the force of a human wrist.

He arranged several small electrical arrays in the isolation area of the demonstration bench, separated the cathodes and cathodes, and connected wires to the ends of the metal block, as if to measure its conductivity.

"Yo, isn't this Senior Brother Chong?" A familiar fellow walked in, just in time to see Chong Bai Yu busy in front of the empirical platform. This senior brother is also a joker, and immediately greeted loudly: "Senior Brother Chong, I haven't seen you for a long time, where have you been recently? ”

As soon as Chong Bai Yu heard this, he almost cried. He said to Huo Tongqing, who was leisurely flipping through the book on the side: "Teacher Huo, don't bring this...... I finally managed to find some time to come back and do some work, why did Senior Brother Hao's words sound so harsh?"

"Hao Zhongqiang. Huo Tongqing nodded his name lightly to show criticism. The disciple smiled and changed his clothes, and began to do his own evidence. However, he still came to Chongbai Yu's side.

Huo Tongqing looked at Chongbai Yu again: "What, have you been wronged?"

"No...... Master, I also went out to do business according to your orders. Chong Bai Yu was really about to wipe his tears: "But now I have pulled down my progress...... I'm ......."

Huo Tongqing smiled: "I was really wronged, and I still suffered it here." He patted Chongbai Yu on the shoulder: "Follow Wang Qi Daoyou, you haven't learned anything?"

"Honestly, I learned a little. Chong Bai Yu nodded: "However, I still ...... I don't really understand. Wang Qi Daoyou is indeed a first-class figure in the last few hundred years, but his theories are basically what logic and wisdom are. I listened to some of them, and they were very thought-provoking, thought-provoking. But other than that, it's useless!"

"It's useless...... Huo Tongqing was embarrassed: "Having said that, we also have to do arithmetic in the way of physical nature." ”

"Statistically symmetrical? I've heard he's doing it, but I haven't seen him use it. ”

Huo Tongqing shook his head: "That's what's wrong with you, Bai Yu." Wang Qi Daoyou, who is a first-class arithmetic, will definitely become a powerful figure in the future. This kind of character, when you are free, people will not necessarily pay attention to you when you come to ask questions. And now, you're doing things under him. What a great opportunity this is, you should ask any questions you have! ”

Chong Bai Yu almost cried again.

He also wants to ask questions! But Wang Qi is completely a hands-off shopkeeper in charge of the empirical department, and he is really busy like a dog. On the other hand, Wang Qi does his own research every day, and basically runs without seeing anyone, even if he wants to ask questions...... He needs to have a chance, too!

And, and ah...... The entire Empirical Department is still in a state of full training, and the activities carried out by the Empirical Department are essentially no different from those of the Senwon Teaching Empirical Division. This...... He didn't have a reason to ask questions!

Huo Tongqing no longer bothered about this problem, and instead looked at the several metal blocks in Chongbai Yu's hand: "Chromium alloy...... Tsk, this seems to be one of the several pancrystalline substances that Wang Qi has studied before - no, this seems to be an empirical sample that Wang Qi has preserved?"

Chong Bai Yu nodded and took out a sigil: "Wang Qi lent me the seal of the sample box where he sealed the empirical sample, and said if I am interested...... Ah, the other day he said that he seemed to know a wonderful phenomenon of resistance, and deduced its existence, and said that if I am interested, I can try it myself. ”

"Oh?" Hao Zhongqiang, who was on the side, also became interested, stretched his neck and asked, "What phenomenon?"

"Well, it's about the resistance of the alloy. Chongbai Yu said: "Under certain conditions, metal refining materials will lead to higher resistance or even insulation due to different crystallization - not because of doping with other non-conductive substances, but because of the way of crystallization. ”

"Che, I thought it was a big discovery. Descending dragon iron, turning amethyst silver. Hao Zhongqiang was a little disdainful: "Someone discovered it eight hundred years ago, and I don't know how many people have discovered it in different ways." What's the big deal about that?"

"No, no...... He seems to have discovered a pattern -- that is, the change in resistivity of a group of materials due to changes in the way they crystallize. A set of data. Wang Qi said that he predicted this phenomenon according to the law he had discovered, and then verified it. The set of data he said was quite unfamiliar to me, so I wanted to come back and test it myself, and then compare it. ”

Huo Tongqing's face changed slightly, and he asked, "How did you test?"

"Well, it's basically true, and I don't know if he really predicted it, or if he measured it first, and then casually attached a law to it. Chong Bai Yu shook his head and sighed: "Well, the resistivity of the pan-crystal in the form of Xin is 3,858 euros per centimeter - it is hard to imagine that this is made of pure metal elements. ”

Usually, the resistivity of a metal is 1 in 10 million of this. If it is a good conductor of iron, it can even reach billions or tens of billions.

"Then, the heptyl form and the C form are also in line with Wang Qi's statement......

Listening to Chongbai Yu's chattering explanation, Huo Tongqing thought thoughtfully: "Oh, that's it...... Interpret it from this perspective...... Crystals? He's going to be crystals, right? I almost thought he was a master of semiconductors. ”

"What's wrong?" Chong Baiyu realized that Huo Tongqing's face didn't seem quite right.

"Oh, I'll listen to you, and I can probably guess what he's going to do...... What is the phenomenon of electron transport inside the crystal...... No, it is also possible to scatter...... There is too little information to guess. Huo Tongqing shook his head: "All in all, this may be a very powerful achievement." ”

"Very powerful?" Hao Zhongqiang was a little surprised: "How powerful, teacher?"

"Well, you should know the concept of 'can bring'. Huo Tongqing asked.

"Atoms are in the crystal lattice, and the outer electrons of the atom are easy to move throughout the crystal due to ethereal tunneling, and these electrons are called shared electrons. Then these electrons form the energy band ...... because of the incompatibility theorem and the energy-spirit minimum principle."

Chongbai Yu interjected: "To put it simply, there are electron orbitals shared with other atoms outside the atom, and electrons can be excited into these orbitals shared with other atoms in the crystal. This is the energy band. ”

Huo Tongqing nodded: "Well, it seems that you two are learning very well." That's what it means. It is also the secret of the ability of ordinary metal substances to conduct electricity. However, in pancrystals, the bands do not appear to be widespread. The special refining materials such as Dragon Descending Iron or Amethyst Silver can indeed isolate electricity, and become one of the few main metal refining materials among the cultivators' calamity weapons......"

"Therefore, it is also a huge mystery why the energy band disappears in some pancrystals. If you study this ...... thoroughly"

Speaking of this, Huo Tongqing suddenly froze. He glanced at the numbers written on Chongbai Yu's table, and closed his eyes to do some mental calculations.

Then, with a blushing face, he said in a slightly sluggish voice, "White Feather...... In the future, don't talk to me about this stuff. You're also working in other people's empirical departments right now, and you need to avoid suspicion. ”

Chong Bai Yu felt abandoned for a moment, driven out of the core position of this empirical department. His tears fell on the spot: "Why, teacher, are you going to kick me out...... I didn't say anything nonsense over there!"

"No, you're talking nonsense here. Huo Tongqing's hands trembled a little, but then quieted down again. He said calmly, "What you just said has already given me an idea - and it is a stroke of genius. I'm scared...... I'm afraid that I can't help myself and do that kind of immoral thing. ”

Chongbai Yu was stunned: "Teacher, this ...... It's not ...... It wasn't on purpose, and Wang Qi didn't know ......"

Huo Tongqing didn't say anything more, but raised his head and forcibly didn't look at Chongbai Yu's empirical platform.

"White Feather. ”

"Teacher ......"

"Wang Daoyou's speed of learning the way of physical properties is far faster than I imagined. These days, I'm going to have to trouble you. Huo Tongqing sighed: "Perhaps, the next new life of my way of material nature is here." ”

....................................................................................................................................................................................................................................

The calculations have been going on for two days.

Wang Qi's spirit continued to be tense, but his mind turned faster and faster.

If impurities are added to the conductor, the electrons will be scattered by these impurities during conduction, and the multiple scattering waves will interfere with each other, resulting in the cessation of the movement of electrons, the loss of conductivity of the metal, and the properties of insulators.

This phenomenon is well understood, and when an electric current encounters a non-conductive impurity, it scatters. And the crest and trough of the wave are superimposed, and they cancel each other out, as if they have disappeared. According to probability, this phenomenon is almost inevitable when multiple scattering occurs.

This is known on Earth as "Anderson localization". It can be regarded as one of the by-products of the Cold War between the United States and the Soviet Union. At the beginning, the United States and the Soviet Union competed for space hegemony and competed to develop high-energy batteries. In the process of research, laboratories in the United States have developed the technology of doping phosphorus and boron in silicon. When the current is applied to this mixture in an uneven state, a peculiar phenomenon occurs in the local region - in the region where the doping concentration is low, the spin diffusion effect of the electrons disappears.

Philip W. Anderson, a researcher at the lab, discovered the phenomenon.

With the collapse of the Soviet Union, the Cold War was long over. And in the era that Wang Qi traveled through, even the United States was no longer at its peak. However, this law is destined to live forever with human civilization.

Even with Wang Qi, and across the universe.

It's just that in this aura universe, it needs to change the form of expression. (To be continued.) )