I Don’t Want to Win Lying Down

Xu Mang suddenly felt that he was a little helpless, and perhaps worried that it was unnecessary. Although the Quantum Research Institute under Fermilab successfully proved the Klein tunneling phenomenon using graphene, the evidence is still insufficient. If you use this kind of evidence to explain Klein tunneling, whether other people can accept it or not, will definitely not be able to pass this level.

According to the report of the Quantum Research Institute under Fermi Lab, they studied the tunneling properties of a single layer of strained graphene driven by a vertical magnetic field, and the transmittance through a magnetic barrier was given through a transfer matrix.

The study found that in small-angle scattering, unlike Klein tunneling in an electric barrier, the magnetic field can confine electrons in a strained magnetic barrier. As long as the incident energy is not very large, the presence of strain can significantly increase the directional transmission rate.

When the injected energy is large, the effect of strain is completely removed, so that strained graphene and ideal graphene have almost the same tunneling properties.

In general,

This is the tunneling characteristic of graphene in a magnetic field under stress.

Sorry,

I cannot accept such evidence!

Xu Mang was full of disdain for this. It was obvious...This was a performance of eagerness for quick success. It is estimated that he knew his existence and accelerated the speed of research, which led to such a problem. There was no evidence for the final word.

"Professor Xu?"

"Do you have any good solutions?" The young graduate student said cautiously: "Now physicists in the Western world are all happy about this. They think that in the field of physics, you are no longer the one to maintain Invincible, now you can be defeated."

Xu Mang was stunned for a moment, and asked curiously: "This...I think you can defeat me? Isn't it just the tunneling properties of graphene in a magnetic field under stress... What's the big deal, no matter what others want? I don't want to admit it. Anyway, I don't admit that this evidence proves Klein tunneling."

"But..." the young graduate student said: "The whole world thinks so, and we haven't even found the right materials. It's too difficult to exceed."

"Who said that?"

"I don't agree!" Xu Mang said solemnly, "Isn't it just finding the right topological insulator material, kidding... There is never a so-called difficulty in my dictionary, as soon as I close my eyes!"

"..."

Hearing Xu Mang’s words, the young graduate student smiled bitterly. No one can say that this is awesome, but Professor Xu Mang can do it, there is no way... He is good at realizing it, but just now it’s awesome. A bit overblown.

"Ahem!"

"Professor Xu Mang, how sure are you?" the graduate student asked cautiously.

"grasp?"

"One hundred and twenty percent." Xu Mang said indifferently: "You go back now, and tell them by the way, don't have any worries, I will be there for everything... Don't be afraid, talk about the mechanism of the super large black hole. Research report, how is the impact?"

"The impact is extraordinary."

"NatureAstronomy has been passed." The graduate student said excitedly: "We don't know why it is so fast, maybe it is your reason, but...we are all on the homepage of the school."

"Oh..."

"Keep working hard!" Xu Mang said casually, then turned on the computer and continued: "Help me close the door when I go out."

moment,

Xu Mang is the only one left in the office. He is not easy now. People all over the world who oppose him are carving, and suitable topological insulator materials are nowhere in sight. What should I do?

Xu Mang fell into silence. According to the research of the previous two days, basically this kind of topological insulator material is a mixed material, that is, the inside is an insulator, but the surface is metal, and under certain conditions, the surface can be transformed into a kind of Superconducting materials.

This greatly increased the difficulty. At first, samarium hexaboride was chosen because samarium hexaboride conforms to the condition that the inside is an insulator, but the surface is metal, and the surface allows electrons to move freely, while the direction of electron movement is locked in An intrinsic quantum property called spin.

However, its surface does not have the conditions to realize the Klein tunnel. Either re-choose a topological insulator material or special processing the samarium hexaboride material. Each choice is difficult, and it is almost a desperate situation with no turning back.

but...

Xu Mang is more inclined to the second choice, special processing of samarium hexaboride material.

"Samarium hexaboride... how can this be transformed into a superconductor material?" Xu Mang couldn't think of a way to break his head. It is not something that humans can solve. It is difficult to turn a topological insulator material into a superconducting material. No less than a short flat and flat Xiaoman becomes a high convex Xiaoman.

"Gosh!"

"It's so difficult!" Xu Mang sighed. To be successful in this area, he must be proficient in topological physics, condensed matter physics, spectroscopy and theoretical theories at the same time, but... he clearly reached the top. Why still can't solve the problem.

"Hey?"

"Director Fang?"

"Is there anything to do with me?" Xu Mang received a call from Fang Jun, director of the Physics Department of Fuda, and said weakly: "I am more desperate now. Using a word of the Internet...Baby's heart, but the baby doesn't say it, I am too damn."

"..."

"Is it about the Quantum Research Institute under Fermilab using graphene to successfully prove Klein tunneling?" Fang Jun said indifferently: "It is normal to fail by accident. After all, people can't go on smoothly."

It's correct to say that, but I am particularly dissatisfied.

"Speaking of Director Fang?"

"Aren't you looking for me just to enlighten me?" Xu Mang asked curiously, "I am now a world-renowned scientist, and I will be able to ask you to sit on an equal footing in the second half of the year. By then, we will all be academicians of the Academy of Sciences. "

"You kid..."

"Forget it." Fang Jun smiled bitterly: "The principal asked me to ask you, do you need graduate students to do research?"

what?

This...really I am a training organization?

Come if you want?

"Ahem!"

"I don't need it for the time being." Xu Mang said with a smile, "By the way...I will charge double the fee in the future, eat mine and drink mine and use mine, and I will also pay them... Director Fang In the future, each graduate student who comes to me for an internship will charge 500,000 yuan per year, and the school will have to bear half of the research topics."

"..."

"This matter... you can talk to the principal personally. If he agrees, I have no opinion." Fang Jun smiled and said: "Then... hang up first."

Snapped!

Hang up directly.

Xu Mang hurriedly called Second Grandpa and asked about raising money and peace sharing research funding, let alone... I didn’t know how to speak for a while, and after a beep, he hung up. Xu Mang needs to organize his language.

Two minutes later,

Xu Mang dialed the phone again, and soon the urging call went through.

"Hey?"

"Hehehe...Second Grandpa?" Xu Mang asked with a smile, "Is your health okay recently? Can you carry it?"

"..."

"I was still healthy, but your kid called me, and I have a little cerebral congestion now." Grandpa Second said angrily, "Did you think of another bad idea?"

"Ahem!"

"Second Grandpa... Am I this kind of person?" Xu Mang said cautiously: "Then what... I'm here to discuss with you. Regarding the graduate students who come to my institute for internship, I think... I have to give money in the future. I was asking for money, but this time I just tried the water."

Regarding the matter of giving money, Grandpa Second knew that he was quite puzzled before. Xu Mang did not call to pay for the money. Now the call finally came.

"Ok!"

"I know about this." Grandpa Second nodded.

"Then what..."

"Second grandpa, I think you made a mistake." Xu Mang said seriously: "I mean to add money in the future, don't be angry, don't be angry...Listen to me...Second grandpa, you understand the situation in my house. , Xiaoman, a prodigal lady, is too prodigal. If I don’t make any money to support my family, I’m afraid our young couple will starve to death in the future."

Hearing Xu Mang's words, the second grandfather almost didn't get mad. This guy really opened his mouth and couldn't help but laughed and cursed: "You kid...I'm your second grandfather. I don't know what's going on in your house yet? .. How much your wife earned last year, your husband told me long ago."

Whoops...

This Nima,

Xu Mang was a little embarrassed, and said with a smile, "Then...the matter of adding money?"

"Don't think about it!"

Snapped!

Hang up directly.

Xu Mang was stunned for a moment, thinking that he had auditory hallucinations, and after repeated confirmation, he was sure that he was hung up by the second grandfather.

Damn...

Puncture Nao, it's hard to say, it's so troublesome.

Xu Mang was so angry that she couldn’t call Xiaoman and asked her to communicate with Grandpa Second. Compared to herself...Grandpa Second seemed to love Xiaoman more. Basically there was no problem, but unfortunately, Xiaoman directly Rejected.

Forget it,

Let's talk about it later, first solve the problem.

Sitting in the office with Erlang's legs tilted, let alone... In the confusion, Xu Mang thought of Xu Yang's structural formula.

perhaps,

Using Xu Yang's structural formula, a hint of inspiration can be obtained.

After recalculating the crystal structure of samarium hexaboride, Xu Mang seems to have discovered some incredible things. He found a material with the same crystal structure as samarium hexaboride, called yttrium hexaboride...has good chemistry Excellent physical, chemical and electrical properties such as stability, electrical and magnetic properties.

"Ugh?"

"That's wrong!" Xu Mang's brain had a short circuit, samarium hexaboride and yttrium hexaboride... which material is used as the base material?

finally,

Xu Mang made two attempts, covering a layer of samarium hexaboride film on the surface of yttrium hexaboride. The other scheme is to cover a layer of yttrium hexaboride film on the surface of samarium hexaboride. Theoretical calculations yielded two completely different results.

finally,

Xu Mang chose to cover a samarium hexaboride film on the surface of yttrium hexaboride. UU reading www. uukanshu.com

In theoretical calculations, when the entire assembly is cooled to a few degrees above absolute zero, yttrium hexaboride becomes a superconductor. Due to its close crystal structure, the metal surface of samarium hexaboride also becomes a superconductor.

In this way, it is in line with all his previous presupposition concepts.

but...

A bit expensive!

Xu Mang thought for a while, it's time to let'vampire' Yang Xiaoman vomit blood!

(°ー°〃)Confused~

(ノへ￣,) Sad!

"Ugh..."

"It seems that tonight is another **** storm!"

......