New three-dimensional flat band candidate materials Pb2As2O7 and Pb2Sn2O7
Izumi Hase, Yoichi Higashi, Hiroshi Eisaki, Kenji Kawashima · 2024
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Description
Izumi Hase, Yoichi Higashi, Hiroshi Eisaki, and Kenji Kawashima scan in a 2024 paper two lead compounds as fresh candidates for flat electronic bands. In frustrated lattices, electron waves can cancel so a band goes flat. Flat bands host rich physics, but real materials that show them are scarce.
First principles math on the two compounds finds states near flat bands in both. Their band widths still exceed a known cousin compound from past research, the team note. One compound packs enough states at the key energy level to turn magnetic on its own. The other shows a dip in states near that level, a pseudo gap sign. Both finds sharpen the hunt for flat band matter.
Catalog record
| CREATOR | Izumi Hase, Yoichi Higashi, Hiroshi Eisaki, Kenji Kawashima |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 186 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |