NOVEL SIMPLE Chapter 577
Chapter 560 Iron-based superconductor (part 1)
Spring City, Lin Da.
After the meal, Lu Ling returned to the superconducting laboratory.
Since Wei Xihan withdrew, she has become the de facto boss in the group.
She is very diligent these days. The level of the data paper is not high, but is it an international paper anyway?
The superconducting census project has even been publicized on the same level as the human gene census project that is unfolding in full swing at this time.
The topic of superconductivity has always been a high fever, and it has always been a big Nobel Prize winner. With the tall ambition, how can you miss the interview?
Lu Ling took advantage of the trend to get a familiar face on TV and wore the hat of a beautiful scientist several times.
The eyes of reporters and audiences are still sharp, knowing who is the real beauty!
“Huh? Why are you here?”
A familiar figure appeared in front of the experimental platform.
“Why can’t I come? Am I not welcome here?”
“No, no! How can it be.”
Lu Ling hurriedly slapped her horse. People are the real beauties. “You didn’t say it yourself. I won’t be superconducting in the future. How dare I not welcome you? Right, Miss.”
“It doesn’t matter if it is not. I want to use the equipment, you have no opinion.”
“No problem. You are the boss, you have the final say.”
The laboratories are all established by others.
“But, what are you going to test? These days, you can’t see your figure every day, what are you doing?”
Lu Ling unconsciously started fighting.
“It’s okay, just have something to confirm. You can go as busy as you are. I’ll just be here by myself.”
Wei Xihan put away the things around him casually.
But the act of trying to cover up aroused curiosity instead. The two have slept together for many years, and they have become familiar with every move.
“Why do you have rice grains on your mouth?”
Lu Ling resorted to a trick and snatched the notebook over. When I opened it, the words “iron base, lanthanum, iron, arsenic, and oxygen” were written on it.
“Iron compound? How can iron be used for superconductivity?”
In the BCS theory, the superconductor cannot contain magnetism. When electrons are paired to form a Cooper pair, due to Pauli’s principle of incompatibility, the spin-positive and negative spins must cancel each other out. From this perspective, superconductivity and ferromagnetism cannot coexist.
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“Give it back to me, why are you doing this?”
The two girls quickly became a group in front of the experimental platform.
“Stop it! Stop it!”
Lu Ling told forgiveness after making trouble for a while.
The laboratory is a dangerous place, and many chemical reagents are highly toxic, such as arsenic.
The sample is not toxic, and the ultra-low temperature itself is also a dangerous product.
“No matter what you do, I will follow and take me.”
Lu Ling insisted that Qingshan would not relax. She didn’t have her share in the last big thesis.
“Well, you are willing to follow, just follow.”
Wei Xihan hesitated, but agreed. After all, iron and iron-based compounds are known as superconducting forbidden zones.
Under the traditional BCS theory, there is a McMillin limit for superconducting materials, that is to say, the superconducting transition temperature cannot exceed 40K. This is why people urgently need to find new theories.
The reason why magnesium diboride caused a huge sensation is because its conversion temperature of 39k is approaching the theoretical limit.
But the greater the hope, the greater the disappointment. After this round of blows, Wei Xihan has lost confidence in the search for new theories.
“You have prepared so many samples! Are these to be tested together or one by one?”
“Test together, drop directly to 10k, and see the effect.”
“okay.”
Lu Ling carefully put the labeled samples into the freezer one by one, and then turned on the power supply.
“What is the chemical composition of these samples? How come they all look the same.”
The waiting time is boring and long. Two people chat with each other.
“They all have the same composition, but the ratio of the elements is a little different.”
The sample is not a natural compound, and it took a lot of her brain cells to make it.
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With the operation of the freezer, soon the set temperature was reached.
“Wow! This sample has superconductivity!”
“Wow! There is also this one.”
Among the 20 samples with different element ratios, two detected superconductivity at a temperature of 10k.
“Xiao Hanhan, you sent it. But you put a real big satellite!”
Although the superconducting transition temperature of the sample is low, it will inevitably bring subversive changes to the world.
“Sure enough, there is an unknown superconductivity theory.”
Wei Xihan was aside, looking at the molecular formula in the notebook, lost in confusion.
who am I?
where am I?
Am I dreaming!
“Yeah. This is really in response to that sentence, there is nowhere to go, there is nowhere to go, and there is a new village. But, Hanhan, how did you think of such a strange combination of molecules?”
This group of synthetic compounds contains two unusual elements, lanthanum and arsenic. Rebirth of Northland Technology latest chapter address: https:// /book/128175.htmlRebirth of Northern Science and Technology Full Text Reading Address: https:// /read/128175/Rebirth of Northland Technology txt download address: https:// /down/128175.htmlRebirth of Northland Technology Mobile Reading: https://m. /read/128175/In order to facilitate the next reading, you can click “Favorites” below to record this reading (Chapter 560 Iron-based Superconductor (Part 1)), and open the bookshelf next time You can see it! If you like “Rebirth of Northland Technology”, please recommend this book to your friends (QQ, blog, WeChat, etc.), Thank you for your support! ! ( )