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Semiconducting Transport in LK99 reproduction attempt

arxiv.org

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Re: Semiconducting Transport in LK99 reproduction attempt

#4
post #2

The biggest question in this whole thing was, why not bring a sample to another lab for verification? Well, now we’re starting to get some reproduction attempt results anyways.

because they just got a few mm^3, not done experimenting with it, and was not ready to publish?

Re: Semiconducting Transport in LK99 reproduction attempt

#7
> 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.

Unless we assume the original paper's authors were straight up lying, it sounds like this paper's author didn't end up with exactly the same material?

Re: Semiconducting Transport in LK99 reproduction attempt

#8
Doesn't it seem like there should be some sort of annealing process required? this material being essentially a powder smashed into a tablet form seems like it would likely be a very poor conductor unless the superconducting properties not only existed in each of the granules of the powder, but also can easily transition between each of the boundaries. So wouldn't you want the final thing to be closer to like a ceramic form? (probably not understanding something here)

Re: Semiconducting Transport in LK99 reproduction attempt

#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 time for that. So incompetence? Self-delusion due to a desire for it to be true?

Re: Semiconducting Transport in LK99 reproduction attempt

#10
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.
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