Hacker News new | past | comments | ask | show | jobs | submit login Origin of correlated isolated flat bands in LK99 ( arxiv.org ) 142 points by lawrenceyan 1 hour ago | hide | past | favorite | 52 comments raziel2701 46 minutes ago | next [–] Man, I'm feeling stronger about LK-99 being it. This paper is theoretical and she finds that particular Cu substitutions onto specific Pb atomic sites are key to enabling a band structure that is usually linked to high Tc superconductors. What this means for the more practical minded is that the synthesis of superconducting LK-99 is not trivial and you need to make the appropriate substitutional alloy for this to work. This is a DFT paper, and a band structure that is usually seen in high Tc superconductors just naturally came out. She also talks about the strong electron-phonon coupling that naturally arose from t...