Visualization of Moiré Magnons in Monolayer Ferromagnet
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
6
Series
Nano Letters, Volume 23, issue 8, pp. 3412–3417
Abstract
Two-dimensional magnetic materials provide an ideal platform to explore collective many-body excitations associated with spin fluctuations. In particular, it should be feasible to explore, manipulate, and ultimately design magnonic excitations in two-dimensional van der Waals magnets in a controllable way. Here we demonstrate the emergence of moiré magnon excitations, stemming from the interplay of spin-excitations in monolayer CrBr3 and the moiré pattern arising from the lattice mismatch with the underlying substrate. The existence of moiré magnons is further confirmed via inelastic quasiparticle interference, showing the appearance of a dispersion pattern correlated with the moiré length scale. Our results provide a direct visualization in real-space of the dispersion of moiré magnons, demonstrating the versatility of moiré patterns in creating emergent many-body excitations.Description
| openaire: EC/H2020/788185/EU//E-DESIGN
Keywords
Other note
Citation
Ganguli, S C, Aapro, M, Shawulienu, K, Amini, M, Lado, J & Liljeroth, P 2023, 'Visualization of Moiré Magnons in Monolayer Ferromagnet', Nano Letters, vol. 23, no. 8, pp. 3412–3417. https://doi.org/10.1021/acs.nanolett.3c00417