Chiral and flat-band magnetic cluster excitations in a ferromagnetic kagome metal

Autor:	Riberolles, S. X. M., Slade, Tyler J., Han, Tianxiong, Li, Bing, Abernathy, D. L., Canfield, P. C., Ueland, B. G., Orth, P. P., Ke, Liqin, McQueeney, R. J.
Rok vydání:	2023
Předmět:	Condensed Matter - Strongly Correlated Electrons
Zdroj:	Nat. Commun. 15, 1592 (2024)
Druh dokumentu:	Working Paper
DOI:	10.1038/s41467-024-45841-8
Popis:	TbMn6Sn6 is a metallic ferrimagnet that displays signatures of band topology arising from a combination of uniaxial ferromagnetism and spin-orbit coupling within its Mn kagome layers. Whereas the low energy magnetic excitations can be described as collective spin waves using a local moment Heisenberg model, sharply defined optical and flat-band collective magnon modes are not observed. In their place, we find overdamped chiral and flat-band spin correlations that are localized to hexagonal plaquettes within the kagome layer. Comment: 6 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2302.04846 Zobrazit plný text záznamu View this record from Arxiv