Key section:

However, the video also stated that they have currently only verified the Meissner effect. Although this crystal exhibits diamagnetism, it is relatively weak and does not possess "zero resistance," and its overall behavior is similar to that of a semiconductor curve. The publisher believes that even if LK-99 has superconducting properties, they are only in trace amounts of superconducting impurities, unable to form a continuous superconducting path.

  • EndMilkInCrisps [he/him]
    ·
    1 year ago

    I have no idea what this means but I hope it means we are getting floating crystal cities.

    • fox [comrade/them]
      ·
      1 year ago

      Remember how the plot of Avatar 1 was nominally about unobtainium, the room temperature superconductor material that let mountains float around? James Cameron keeps winning

    • rubpoll [she/her]
      ·
      1 year ago

      Floating magnetrine ships, at least. Fingers crossed.

  • newmou [he/him]
    ·
    1 year ago

    But like, if it was cooled down just a little, not a crazy amount like other superconductors need to be, would that unleash it or something

    • KobaCumTribute [she/her]
      ·
      edit-2
      1 year ago

      So far we have the three papers from the Korean lab that synthesized it first, one of which is peer reviewed, which claim to have measured superconductivity - the sketchy first paper claims it up to 117C while the peer reviewed one claims 97C - and other labs have started testing their own replicated samples. One of those found extremely high resistance to the point of being not conductive at all at any temperature (they stated that they think their sample is just bad and they're going to try again AFAIK), while the other recorded superconductivity up to 110K (-163C).

      So it seems that it is a high temperature superconductor at least, but exhibits diamagnetism even at room temperature which is unusual. Which raises the question of why the original paper recorded superconductivity at room temperature: it seems unthinkable they'd successfully make a high temperature superconductor and then bungle the testing so hard that they think it's a room temperature superconductor. Clout chasing grifting also seems unlikely, since a cheap and simple way of making a high temperature superconductor would be a notable accomplishment that wouldn't ruin them like pretending it's an RTSC would when that inevitably gets disproven. So basically a purer sample either is an RTSC and even an impure sample can be a high temperature superconductor, or they just royally fucked up their testing somehow.

  • Frank [he/him, he/him]
    ·
    1 year ago

    My VPN doesn't like the page. Any reason to be cocerned? Says it's not certified.

    • pooh [she/her, love/loves]
      hexagon
      ·
      1 year ago

      It’s a pretty large and well known news site out of China. Not sure why your VPN is concerned about it.