Thread by @Andercot

First video of LK-99 Full Levitation, aka flux-pinning

This video was just posted to the Chinese video-sharing site BiliBili and claims to be a highly pure synthesized sample of LK-99.

What is the physical phenomenon behind this and what does it mean?

Levitation of… https://t.co/KGRhGjtrOytwitter.com/i/web/status/1…

Here is the plot of surface resistance from a study of SRF cavities entering superconducting state with a background magnetic field. The X-axis goes from higher temperatures towards lower temperatures as it goes from left to right. The Y-axis is surface resistivity in nano-ohms.… https://t.co/by82AQlKxftwitter.com/i/web/status/1…

For those looking to catch up on the evolving LK-99 saga here is a quick summary of posts which I have written, all of which try to explain content in a way that is approachable for a general audience while including enough depth to be interesting to a technical audience.

Three… twitter.com/i/web/status/1…

Here is a picture showing the difference between the Meissner effect and flux-pinning, also called 'quantum locking'

The video attached above was posted only 2 hours ago twitter.com/i/web/status/1…

@FPerez30514123 ( for other readers - the orientation of the lower magnets means that it is a dipole field, and, any diamagnetic material also produces a simple dipole field in response. So, this is a situation of two dipoles floating in free space, which is impossible via Earnshaw's theorem,… twitter.com/i/web/status/1…

Note that this orientation of magnets on the bottom produces whats called a 'dipole field', like that of a bar magnet. If the material on top was a simple diamagnetic, then it is physically impossible for it to stably levitate, especially when poked by the stick.

This is from a… twitter.com/i/web/status/1…