I really don't want to lie down and win

Xu Mang's thoughts returned to the Weyl semimetal. According to the prediction theory of the Weyl fermion state, the following points can be basically determined. First, the Weyl cones with opposite chirality appear in pairs in the body energy band structure. Second, there is an open Fermi surface connecting the surface projections of two Weyl points on the crystal surface.

This Fermi surface is called a Fermi arc...

The three different chiral Weyl fermions are separated from each other, which will lead to a peculiar chiral anomalous effect.

basically,

If nothing else,

These three cases are presumably strange physical phenomena of Weyl semimetals.

weyl cone,

Fermi Arc,

chiral anomaly...

According to these three characteristics, find the corresponding material.

09:30 pm,

Xu Mang worked out the basic theoretical framework of Weyl semimetals, which were actually some derivations from Weyl fermion states.

After taking a shower,

After putting on his pants, Xu Mang was about to go to bed when he found that the bedroom door was locked, so he knocked on the door hastily.

"Xiaoman?"

"Open the door!" Xu Mang shouted.

"Do you know what's wrong?" Yang Xiaoman said angrily.

"what?"

"Oh...I was wrong." Xu Mang remembered what his cousin-in-law said at this time, facing his daughter-in-law, just admit his mistake unconditionally.

Ugh...

It's time to visit relatives.

moment,

the door opened,

Xu Mang slipped in, and got under the blanket before Xiaoman could react.

Safe!

"Xiaoman?"

"Uh?"

"By the way, why are you suddenly angry?" Xu Mang asked curiously, "Did a relative come?"

Yang Xiaoman rolled her eyes, and said nonchalantly: "Why are you counting so carefully? Could it be that before you met me, you counted other people's cycles every day?"

Hearing these words, Xu Mang suddenly felt something was wrong.

Finished!

It's all over!

When a scholar meets a soldier, he can't explain why.

This night,

Spent in blood and tears and sweat.

...

The next day,

Xu Mang walked towards the Condensed Matter Physics Laboratory with his satchel on his back.

"Ugh?"

"Professor Fan is so early?" Xu Mang put down his satchel with a smile, drank soy milk and asked, "Have you had breakfast yet?"

"have eaten."

"By the way, what do you want from me?" Fan Zhilong asked.

"Give!"

Xu Mang threw out a promised manuscript from his satchel, and said with a smile, "All the contents are on it."

Fan Zhilong was stunned for a moment, picked up the manuscript and opened it. In less than half a minute, his heartbeat began to speed up, his breathing became rapid, and the thoughts in his brain had been drained. Now Fan Zhilong was left with a shriveled body. secondary body.

"This..."

"you..."

Fan Zhilong raised his head and looked at Xu Mang in horror: "Weyl semi-metal?"

......

5 Have you finished Chapter 1? ! (3/[-])

"Xu Mang?"

"What's the situation?"

"You... I remember you were working on axions?"

After being amazed, there was endless confusion. Fan Zhilong asked curiously: "Why do we suddenly study Weyl semimetals? And this Weyl semimetal is no simpler than your axion. This theory was put forward more than 80 years ago."

Faced with this situation,

Xu Mang just smiled lightly, and said silently: "Actually... I found that Weyl fermions may be related to axions. I want to prove Weyl fermions first, and then use the existence of Weyl fermions to find Axe."

"you..."

"You have to overcome three problems at once." Fan Zhilong said helplessly: "The leap from condensed matter to high-energy particles almost created three miracles."

"Okay."

"But... who would know." Xu Mang said with a smile on his face: "They are all illusory things, and it is so difficult to find them, but Weyl Fermi and Weyl semimetals have relevant theoretical support , but the axion is pure prediction."