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Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

arxiv.org

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Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#31

Post by saberdancer »

est wrote: post #23

https://www.bilibili.com/video/BV14p4y1V7kS/ Latest update: the diamagnetism has been confirmed from a tiny LK-99 replica sample. The Author posted: > Under the guidance of Professor Haixin Chang, postdoctor Hao Wu and PhD student Li Yang from the School of Materials Science and Technology of Huazhong University of Science and Technology successfully for the first time verified the LK-99 crystal that can be magnetica…

https://targum.video/v/2023/8/1/2534a4408ccce9c13a811e94f16d...

Targum translation. From the comments and video it seems he claims levitation of a micron sized particle. Not sure if it is fake or not.

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#32

Post by dorchadas »

admissionsguy wrote: post #19
lifthrasiir wrote: post #7

Earlier quoted context omitted.

> The accusation is that Young-Wan Kwon published the first paper without the consent of the rest of the LK-99 team, listed himself as third author, and left off the other four. Two hours later, the rest of the LK-99 team stuffed as much as they had into the second paper, and released it as soon as possible. Kwon has already left the company early this year according to recent interviews. Moreover a supposed private…

> I don't know what Kwon actually wants out of all of this stunt He may be just a grifter. Or he may have played a key role in the discovery but was going to be put as the 6th author (at best) in the joint paper. If so, he has already gained much more recognition than he would have otherwise.

I feel it's pretty clear he's aiming for the Nobel if it's true. It can only be split three ways, after all.

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#33

Post by ergocoder »

was_a_dev wrote: post #4
joefigura wrote: post #3

I just wrote a comment in another thread that's relevant here too. It looks like the first superconductor paper was released by a rouge researcher, without the agreement of the other two authors or the rest of the LK-99 group. This forced the LK-99 group to rush to publish the official paper, with a cost to quality. The LK-99 group released v2 a week later (on Saturday), and probably will continue to update it. A pre…

It is suggested that politics has come into play here as only three people can win a Nobel Prize. I hope that, if this ends in a Nobel Prize, that "sportsmanship" comes into account

Nobel Prize committee needs the cancel culture.

Who in their right mind would reward only 3 people out of 6? How would they even choose 3 among themselves?

This nobel prize limitation is a classic example of a moral hazard situation.

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#34

Post by jjallen »

causalmodels wrote: post #18
brunooliv wrote: post #12

What are the implications in general of room temperature superconductors? I just know that they needed typically ultra low temperatures right? But what would be the practical implications?

Hoverboards.

Is this actually true? It is not obvious to someone somewhat versed in physics how this is enabled by room temperature super conductors unless the entire riding surface is magnetized.

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#35

Post by sanxiyn »

brunooliv wrote: post #12

What are the implications in general of room temperature superconductors? I just know that they needed typically ultra low temperatures right? But what would be the practical implications?

Cooler chips. Chips heat due to resistance, and superconductors have zero resistance (by definition). I suspect this is the company's intended application. The following quote from their patent is very suggestive if you know about semiconductor manufacturing.

> In addition, various energy sources used for deposition are not limited to chemical vapor deposition (CVD) using heat, but atomic layer deposition (ALD), sputtering, and thermal evaporation, e-beam evaporation, molecular beam epitaxy (MBE), pulsed laser deposition (PLD), etc. are also included without limitation as long as the raw material can be deposited.

Listed methods are those used in semiconductor manufacturing to introduce materials to the wafers. It is also significant that the company's marketing material describes its resistance as "1/10^4 less than copper", because copper is currently used as a conductor in chips. (It wasn't always so, it used to be aluminium, which is a fascinating story itself. Read more on https://en.wikipedia.org/wiki/Copper_interconnects.)

https://patents.google.com/patent/WO2023027537/en

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#36

Post by joefigura »

ergocoder wrote: post #33
was_a_dev wrote: post #4

Earlier quoted context omitted.

It is suggested that politics has come into play here as only three people can win a Nobel Prize. I hope that, if this ends in a Nobel Prize, that "sportsmanship" comes into account

Nobel Prize committee needs the cancel culture. Who in their right mind would reward only 3 people out of 6? How would they even choose 3 among themselves? This nobel prize limitation is a classic example of a moral hazard situation.

Scientific collaborations have gotten steadily larger over time. Groups are no longer 3 people exchanging letters, and the 3 person limitation makes no sense.

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#37

Post by est »

saberdancer wrote: post #31
est wrote: post #23

https://www.bilibili.com/video/BV14p4y1V7kS/ Latest update: the diamagnetism has been confirmed from a tiny LK-99 replica sample. The Author posted: > Under the guidance of Professor Haixin Chang, postdoctor Hao Wu and PhD student Li Yang from the School of Materials Science and Technology of Huazhong University of Science and Technology successfully for the first time verified the LK-99 crystal that can be magnetica…

https://targum.video/v/2023/8/1/2534a4408ccce9c13a811e94f16d... Targum translation. From the comments and video it seems he claims levitation of a micron sized particle. Not sure if it is fake or not.

They are baking the third batch, hopefully get some samples big enough for testing resistance this time.

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#38

Post by verytrivial »

sonium wrote: post #20

I have a PhD in material science and worked with superconductors, here are two things that is often misunderstood: 1) it takes a undergrad to make and measure a superconductor but a Nobel laureate to explain it. 2) in theory if you understand the mechanism of something you can improve it. In material science however almost always all you need is a trial and error approach to end up with a good result. Conclusion: the…

If we assume it isn't superconductivity, is the amount of diamagnetism still novel/interesting if not a world changing?

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#39

Post by curiousObject »

ergocoder wrote: post #33
was_a_dev wrote: post #4

Earlier quoted context omitted.

It is suggested that politics has come into play here as only three people can win a Nobel Prize. I hope that, if this ends in a Nobel Prize, that "sportsmanship" comes into account

Nobel Prize committee needs the cancel culture. Who in their right mind would reward only 3 people out of 6? How would they even choose 3 among themselves? This nobel prize limitation is a classic example of a moral hazard situation.

>Who in their right mind would reward only 3 people out of 6?

In this case, the discovery, if it’s real, could get the awards for Physics and also for Chemistry. Because it’s such a once in a century level of scientific breakthrough

Perhaps Physics award mainly for a theoretical explanation and Chemistry award mainly for the experimental process

Therefore, six authors might be honored. It’s unlikely, but it’s a solution if the authors deserve it

Re: Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2

#40

Post by Rzor »

jrflowers wrote: post #22
brunooliv wrote: post #12

What are the implications in general of room temperature superconductors? I just know that they needed typically ultra low temperatures right? But what would be the practical implications?

Portable lightweight consumer rail guns

I think we also get closer to lightsabers.
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