Origin of correlated isolated flat bands in copper-substituted lead phosphate apatite
2023/07/31 by Sinéad M. Griffin, Griffin, Sinéad M. · 28 voices · 4 citations
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.mtrl-sci #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.2307.16892
openalex publication_date 2023/07/31 · openalex created_date 2023/08/02 · openalex updated_date 2026/07/28
Abstract
A recent report of room temperature superconductivity at ambient pressure in Cu-substituted apatite (`LK99') has invigorated interest in the understanding of what materials and mechanisms can allow for high-temperature superconductivity. Here I perform density functional theory calculations on Cu-substituted lead phosphate apatite, identifying correlated isolated flat bands at the Fermi level, a common signature of high transition temperatures in already established families of superconductors. I elucidate the origins of these isolated bands as arising from a structural distortion induced by the Cu ions and a chiral charge density wave from the Pb lone pairs. These results suggest that a minimal two-band model can encompass much of the low-energy physics in this system. Finally, I discuss the implications of my results on possible superconductivity in Cu-doped apatite.
Cited by
Discussions
- Origin of correlated isolated flat bands in LK99 [hn, 397 points, 203 comments]
- First claimed successful replication of LK-99 [lemmy, 335 points, 57 comments]
- we are so fucking back!! https://arxiv.org/abs/2307.16892 [bsky, 13 points, 2 comments]
- Wenn der Raumtemperatur Supraleiter Realität wird, dann treffen wir uns im Park, trinken zusammen Bier und feiern das ende eines Zeitalters zusammen? Deal? https://arxiv.org/abs/2307.16892 [bsky, 6 points, 1 comments]
- https://arxiv.org/abs/2307.16892 [bsky, 5 points, 3 comments]
- LK99의 초전도성을 뒷받침하는 이론적 배경이 좀 더 믿을 수 있는 그룹에서 발표되기 시작함 https://arxiv.org/abs/2307.16892 [bsky, 4 points, 2 comments]
- 논문이 구라가 아닌건 맞는데, 동 조건 / 동 데이터라 하기엔 아직 애매해보입니다. 지금 나온 시뮬레이션(https://arxiv.org/pdf/2307.16892.pdf) 은 구리 원자가 결정 구조로 침투, 납 원자를 대체한 상태에서 페르미 레벨에 가까운 전자 전도 경로가 있다 <- 라는게 나온거죠. 다만 이 전도 경로는 구리 원자가 결정 격자에서 가 [bsky, 4 points, 1 comments]
- 고려대 초전도체 LK-99에 대해 미 로렌스 버클리 연구소에서 인류에게 엄청 긍정적인 소식이라며 arXiv에 논문 LBNL results support LK-99 as a room-temperature ambient-pressure superconductor. Simulations published 1 hour ago on arxiv support LK [bsky, 4 points, 1 comments]
- a brief summary of korean excellence and transbian excellence (so far it hasn't been replicated but there are unsourced vids from china also confirming, as well as an arxiv paper with simulations sup [bsky, 3 points, 1 comments]
- claims that lk99 bears fruit theoretically, WE'RE SO BACK [bsky, 3 points, 0 comments]
- Recent events in superconductivity research (read: LK-99) [lemmy, 2 points, 1 comments]
- Theoretical support for lk99 https://arxiv.org/abs/2307.16892 [bsky, 2 points, 0 comments]
- Paper in question: https://arxiv.org/abs/2307.16892 [bsky, 2 points, 0 comments]
- 🤞Parece que o LK-99 é mesmo super-condutor à temperatura ambiente! Já há a primeira reprodução. Isto é um salto evolutivo da mesma dimensão da invenção do transístor. Na rede ao lado há uma boa thr [bsky, 2 points, 2 comments]
- from berkeley https://arxiv.org/abs/2307.16892 [bsky, 2 points, 0 comments]
- 초전도체 관련 재현 실험이 아니라 시뮬레이션이라고. 트위터에서 이런 설명을 접함. “이론적으로 초전도특성을 보일 수 있음을 시뮬레이션상으로 증명한 건데, 원자결합까지 시뮬레이션하는 기술을 가지고도 상온초전도의 결정적 조성을 찾지 못하다가… '힌트'를 찾았다는 것” * 시뮬레이션 논문 링크: https://arxiv.org/abs/2307.16892 * 트위 [bsky, 1 points, 1 comments]
- Potentially cool stuff. Won't lose hope just yet.. https://arxiv.org/abs/2307.16892 [bsky, 1 points, 1 comments]
- Are we getting room temperature, ambient pressure superconductors for Christmas? https://arxiv.org/abs/2307.16892 [bsky, 1 points, 1 comments]
- https://arxiv.org/abs/2307.16892 "Here I perform density functional theory calculations on Cu-substituted lead phosphate apatite, identifying correlated isolated flat bands at the Fermi level, a comm [bsky, 1 points, 1 comments]
- Here's an arXiv page that I think is from the LBNL study: https://arxiv.org/abs/2307.16892 [bsky, 1 points, 0 comments]
- Incidentally, even if this #superconductor turns out to be bollocks (which I suspect it will), then the fact that the simulation of its structure works will lead to an explosion of new candidate mater [bsky, 0 points, 0 comments]
- 今の所来そう シュミレーションでも示されたらしい https://arxiv.org/abs/2307.16892 [bsky, 0 points, 1 comments]
- Prediction market for room temperature superconductor just increased in probability by a lot. Probably due to this paper https://arxiv.org/abs/2307.16892 [bsky, 0 points, 0 comments]
- 걍 메모 https://arxiv.org/abs/2307.16892 [bsky, 0 points, 0 comments]
- 일단 논문에서는 ‘고온초전도체의 알려진 특성을 재현하고는 있으나 합성이 쉽지 않을 것‘이란 말을 하고 있긴 하군요. https://arxiv.org/abs/2307.16892 [bsky, 0 points, 0 comments]
- Ik snap hier niks van, maar in de comments op Twitter worden ze hier erg enthousiast van. Als ik het goed begrijp is dit een theoretische basis voor het koreaanse experiment.. https://arxiv.org/abs/23 [bsky, 0 points, 0 comments]
- 自分は完全に門外漢ですが、数値シミュレーションでも｢あり得る｣という結果が出たとか出ないとか。ただ、いまのところそれと反磁性以上の確かな追試結果は出ていないので、まだちょっと有望、くらいかと。でも本当だったらいいですね。 https://arxiv.org/abs/2307.16892 [bsky, 0 points, 1 comments]
- https://arxiv.org/abs/2307.16892 [bsky, 0 points, 0 comments]
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