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Semiconducting Transport in LK99 reproduction attempt

arxiv.org

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Re: Semiconducting Transport in LK99 reproduction attempt

#11

Post by dtx1 »

danbruc wrote: post #9

Maybe not yet the final nail in the coffin but I would no longer bet much on a successful replication. Which leaves me wondering how we got the initial papers. Does fraud make any sense, how could you possibly benefit from something like this? And if I would think that I might have produced a room temperature superconductor due to experimental errors, I would double and tripple check what I did. Assuming there is tim…

It seems there was a race for the patents and an early draft of the paper leaked by a researcher related (somehow) to the project.

Re: Semiconducting Transport in LK99 reproduction attempt

#13

Post by jeron »

bestcoder69 wrote: post #10
danbruc wrote: post #9

Maybe not yet the final nail in the coffin but I would no longer bet much on a successful replication. Which leaves me wondering how we got the initial papers. Does fraud make any sense, how could you possibly benefit from something like this? And if I would think that I might have produced a room temperature superconductor due to experimental errors, I would double and tripple check what I did. Assuming there is tim…

Could be a skill issue on the part of the replicators? The russian anime girl scientist had to make a bunch of modifications (and was cursing the orig authors) before she could make her rocks float.

>The russian anime girl scientist had to make a bunch of modifications (and was cursing the orig authors) before she could make her rocks float.

link?

Re: Semiconducting Transport in LK99 reproduction attempt

#14

Post by lifthrasiir »

danbruc wrote: post #9

Maybe not yet the final nail in the coffin but I would no longer bet much on a successful replication. Which leaves me wondering how we got the initial papers. Does fraud make any sense, how could you possibly benefit from something like this? And if I would think that I might have produced a room temperature superconductor due to experimental errors, I would double and tripple check what I did. Assuming there is tim…

Apparently [1] the group wanted to play safe and push for more verification internally, but Kwon (the third author of the first arXiv submission) posted his own draft without others' consent. So it's in my opinion useless to discuss whether the submission itself was sincere or not---it was never their intention.

[1] https://hackmd.io/@sanxiyn/S1hejVXo3 (Semi-automatically translated: https://hackmd.io/DMjYGOJFRheZw5XZU8kqKg). Disclosure: I wrote a draft for this report.

Re: Semiconducting Transport in LK99 reproduction attempt

#15

Post by a_vanderbilt »

Given the stark contrast in behavior between their sample and the one described in Lee et al., is this even the same material? Surely while the conductive characteristics can be explained by errors in measurement procedure, why would the behavior in a magnetic field be different? Were the original authors being dishonest? Was the replicated material different? The X-ray analysis seems to support that they are very similar, if not the same. I expect we're going to see more of this over the next week as more Chinese labs manufacture the samples.

Re: Semiconducting Transport in LK99 reproduction attempt

#16

Post by TaylorAlexander »

bestcoder69 wrote: post #10
danbruc wrote: post #9

Maybe not yet the final nail in the coffin but I would no longer bet much on a successful replication. Which leaves me wondering how we got the initial papers. Does fraud make any sense, how could you possibly benefit from something like this? And if I would think that I might have produced a room temperature superconductor due to experimental errors, I would double and tripple check what I did. Assuming there is tim…

Could be a skill issue on the part of the replicators? The russian anime girl scientist had to make a bunch of modifications (and was cursing the orig authors) before she could make her rocks float.

Was that fiction? I saw someone mention that the Russian anime girl scientist was fiction.

Re: Semiconducting Transport in LK99 reproduction attempt

#17

Post by p-e-w »

> In addition, when a pressed Pb10-xCux(PO4)6O pellet is located on top of a commercial Nd2Fe14B magnet at room temperature, no repulsion could be felt and no magnetic levitation was observed either.

So what about the video[1] that shows magnetic levitation occurring?

Since the linked article was unable to reproduce this effect, it seems there are two possibilities:

1. The video is fake (which is really, really hard to imagine since that would predictably end the authors' careers).

2. The sample synthesized for the linked article doesn't match the original one for whatever reason.

[1] https://sciencecast.org/casts/suc384jly50n

Re: Semiconducting Transport in LK99 reproduction attempt

#18

Post by bestcoder69 »

TaylorAlexander wrote: post #16
bestcoder69 wrote: post #10

Earlier quoted context omitted.

Could be a skill issue on the part of the replicators? The russian anime girl scientist had to make a bunch of modifications (and was cursing the orig authors) before she could make her rocks float.

Was that fiction? I saw someone mention that the Russian anime girl scientist was fiction.

Maybe thinking of this? https://twitter.com/quantian1/status/1686174330793660416

Re: Semiconducting Transport in LK99 reproduction attempt

#19

Post by bestcoder69 »

jeron wrote: post #13
bestcoder69 wrote: post #10

Earlier quoted context omitted.

Could be a skill issue on the part of the replicators? The russian anime girl scientist had to make a bunch of modifications (and was cursing the orig authors) before she could make her rocks float.

>The russian anime girl scientist had to make a bunch of modifications (and was cursing the orig authors) before she could make her rocks float. link?

https://twitter.com/iris_IGB/status/1685322871306928128

Re: Semiconducting Transport in LK99 reproduction attempt

#20

Post by jacquesm »

kikokikokiko wrote: post #5

Let's hope it can be settled fast. The worse thing that can happen to a revolutionary claim like this is for it to become a "cold fusion" type of subject, with lots of "confirmations" and many more non-replications.

That was science entirely operating as intended. What matters is the long term, not the short term dynamic.
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