For the first time in the world, we succeeded in synthesizing the room-temperature superconductor (Tc≥400 K, 127∘C) working at ambient pressure with a modified lead-apatite (LK-99) structure. The superconductivity of LK-99 is proved with the Critical temperature (Tc), Zero-resistivity, Critical current (Ic), Critical magnetic field (Hc), and the Meissner effect. The superconductivity of LK-99 originates from minute structural distortion by a slight volume shrinkage (0.48 %), not by external factors such as temperature and pressure. The shrinkage is caused by Cu2+ substitution of Pb2+(2) ions in the insulating network of Pb(2)-phosphate and it generates the stress. It concurrently transfers to Pb(1) of the cylindrical column resulting in distortion of the cylindrical column interface, which creates superconducting quantum wells (SQWs) in the interface. The heat capacity results indicated that the new model is suitable for explaining the superconductivity of LK-99. The unique structure of LK-99 that allows the minute distorted structure to be maintained in the interfaces is the most important factor that LK-99 maintains and exhibits superconductivity at room temperatures and ambient pressure.

  • Owl [he/him]
    ·
    1 year ago

    Here's a picture of it levitating on a magnet.

    Show

    Apparently there are materials that can do this that aren't superconductors, but it is superconductor-y.

    Note that it's not doing a very good job at levitating. Apparently it's kind of bad at some of the stats people want a room conducting superconductor for*. Also note that it's levitating next to some guy's hand and his hand isn't falling off from frostbite. That's the room temperature part.

    * I am being vague and handwavy because I don't want to give you the impression I know what the fuck I'm talking about.

    (Image source is a different paper by the same people)