I am devoted to scientific research, but you want to trick me into having a love relationship?

Chapter 517 Do you want to take a sip?
In the office, Xu Qingzhou took a sip of coffee, smiled and said, "Maybe, I will try this topic when I have time."

"alright."

Horn shrugged, paused, and couldn't help asking, "How is your physics experiment and superconducting film project going? Is there any good news? I heard that the Maxwell team at Princeton has successfully completed the first phase of the experiment."

Xu Qingzhou knew this, and the Maxwell team announced a breakthrough yesterday. They developed a real-time in-situ monitoring + ML feedback system that can optimize multi-layer sputtering and high-temperature annealing.

In addition, a Bayesian optimization algorithm was used to shorten the search time for the optimal sputtering power from 6 months to 2 weeks.

The performance of the latest samples is Jc(12 T)≥2×10A/cm.

"We encountered some tough problems. It turns out that we are still a little bit behind these top teams."

Horn was surprised. It was the first time he saw this guy so humble.

"However, you can expect our future development. It will take time to surpass them."

"."

Horn had a complicated expression and said with some admiration: "I really should learn from your mentality."

Is this a small difference? It's like being crushed in all aspects!
After drinking coffee, Xu Qingzhou said goodbye and left. On the way, he bought a hot dog sandwich and ate it quickly, then went straight to the library.

Find an empty seat and get into the mood quickly after sitting down.

It is his habit to analyze the problem manifestation and core mechanism before solving a problem.

We need to first figure out why.

This is actually similar to causal inference in economics, which requires distinguishing between "correlation" and "causality", asking "why does X lead to Y", building a counterfactual framework, and verifying the effectiveness of the mechanism.

Strictly speaking, the research logic of natural sciences is basically the same. The essence is to penetrate the appearances and construct an explanatory cognition of the world. It’s just that their names are different. For example, in journalism it is called the “Five W Principles”.

Xu Qingzhou called up the data and the graph of material changes under the electron microscope from the computer.

First of all, it is necessary to analyze and compare the gap with commercial grade from three aspects: industrial-grade film, weak connection dominated by grain boundary, and high-density pinning material.

On the structure diagram.

"Flux creep, that is, as the magnetic field increases, the flux lines move under the force of the Lorentz force, which in turn causes energy dissipation and a decrease in Jc."

apartment.

Xu Qingzhou pinched his sore arms, stood up and poured himself a cup of hot water, stood in front of the window to relax his brain, and after two days of hard calculations, he finally had some ideas and came up with four theoretical technical solutions.

The first one is to introduce high-density pinning centers by doping or nanostructure engineering.

Second, geometric confinement is used to enhance flux pinning, that is, nanoholes are pre-etched in the base by electron beam lithography to guide the formation of periodic defects during NbSn epitaxial growth.

The other two are screw dislocation network and grain boundary AlO modification.

Xu Qingzhou is more concerned about the first two solutions.

Both construct artificial lattices to force the magnetic flux lines to arrange according to preset geometric rules, enhance the pinning force density through geometric constraints and periodic potential fields, strengthen the pinning force density and eliminate weak connections at grain boundaries.

Er Miao was lying on the sofa, continuing to be a useless little waste. In the bathroom, School Beauty Song was taking a bath.

"continue."

Xu Qingzhou stood in front of the window for a few minutes, then sat down again to consider the feasibility of the first two options.

After 15 minutes, the sound of running water in the bathroom disappeared. After a while, Song Yao came out wearing a shower cap, her little face rosy from the hot mist.

Xu Qingzhou turned around and saw that she hadn't washed her hair, so he didn't get up to get the hair dryer and focused on the manuscript.

Song Yao walked over in slippers, stood behind Xu Qingzhou, put her little hands on his shoulders and squeezed them gently.

"Is the plan ready?"

Xu Qingzhou enjoyed the massage service from School Beauty Song. "Not quite there yet. I need to work on it a little more."

"I believe you. It's time to take a break. You've been counting since the afternoon."

"Okay, combine work and rest."

Song Yao rubbed her face against Xu Qingzhou's cheek twice, then went back to the bathroom to wash her underwear.

Xu Qingzhou closed his notebook and took a nap on the sofa.

My body relaxed, but my mind couldn't help but think of the two options just now.

When Song Yao came out after hanging up the clothes, she saw Xu Qingzhou sitting on the sofa in a daze again. This guy is like this, once he starts thinking, he can't stop, and he looks deep in thought whether he is sitting or lying down.

If this happens often.

I will definitely become a bald man.

After thinking about it, Song Yao simply lay down on the sofa and put her feet into Xu Qingzhou's arms. This is called joining the game with your body.

Xu Qingzhou glanced at the feet placed on his thighs, which were white and tender. "No, thank you."

"?"

Song Yao stared.

What don’t you want to eat?
"Okay, I'll eat."

Xu Qingzhou grabbed the white ankle.

School Beauty Song seemed to be stimulated and quickly retracted her foot. She looked at Xu Qingzhou's serious expression and after a long while, she finally uttered the word "pervert".

I went to sit at the desk, unwilling to sit with this person.

You shouldn't be so rude. You have no fun now.

Xu Qingzhou imitated Song Yao and half-lay on the sofa with his hands behind his head. This allowed him to daydream and relax his brain while also looking at the beauty.

He looked at the girl and said, "Don't worry."

"I'm not worried."

Song Yao answered coldly.

Xu Qingzhou smiled, changed to a comfortable position and said, "I was just thinking about the technical feasibility of making nanohole arrays and nanocolumn doping. I didn't get stuck in a rut, and I won't be autistic. It's the first two methods you looked at last night. Theoretically speaking, the former is definitely better than the latter."

“Nanohole arrays require a photolithography machine.”

Song Yao took a look at the manuscript and quickly found the problem.

"That's right. Although I really want to make nanopore arrays in one go, the equipment is more complicated. MIT's laboratories with photolithography machines are in great demand and expensive. Forget it, let's just focus on the development of YO nano-doping process."

Xu Qingzhou glanced out the window.

At this time, through the blurry glass, you can see the white snow petals outside the house falling like goose feathers, fluttering and intertwining together.

The first snow in 2019.

He retracted his gaze and extended an invitation: "It's only 9 o'clock now, do you want to take a break and watch a movie together?"

Song Yao glanced out the window. It was snowing. A layer of ice formed on the glass. The snowflakes and the light and shadow of the city looked somewhat dreamy.

In such cold weather, it’s perfect to snuggle in the arms of the one you love.

but.
Schoolgirl Song felt it was necessary to emphasize this, and warned, "You can't touch me."

"will not."

Xu Qingzhou sat up to make room for School Beauty Song.

"besides."

Song Yao paused and added seriously: "You can't lick my feet."

"."

Xu Qingzhou might really take a sip. After all, this guy always has some weird hobbies.

"I'm not a pervert. I'm not licking your feet for fun."

Xu Qingzhou refuted flatly.

Although I do have such an impulse sometimes, but think about it, I don’t dare to do it again after being almost kicked by Song Yao last time. Do I feel guilty about it?
No!

"whispering sound."

Song Yao uttered a single sound to express her contempt, walked over in slippers, sat next to Xu Qingzhou, squeezed her buttocks, and hid in his arms.

"What movie?"

Xu Qingzhou picked up the remote control.

"Look for it first."

When the two of them were together, Song Yao was basically too lazy to make a choice.

Xu Qingzhou searched for a few minutes and finally decided on "Hachiko: A Dog's Story", a very classic movie. Considering the past, he must have watched it decades ago, and he has already vaguely remembered the plot.

Ermao wandered around the living room and landed next to the two-legged animals. He was very interested in the furry things on the screen that were just like himself.

(End of this chapter)