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Title:

Breakdown of chiral edge modes in topological magnon insulators

Document type:
Zeitschriftenaufsatz
Author(s):
Habel, Jonas; Mook, Alexander; Willsher, Josef; Knolle, Johannes
Abstract:
Topological magnon insulators (TMI) are ordered magnets supporting chiral edge magnon excitations. These edge states are envisioned to serve as topologically protected information channels in low-loss magnonic devices. The standard description of TMI is based on linear spin-wave theory (LSWT), which approximates magnons as free noninteracting particles. However, magnon excitations of TMI are genuinely interacting even at zero temperature, calling into question descriptions based on LSWT alone. H...     »
Journal title:
Physical Review B 2024-01
Year:
2024
Journal volume:
109
Journal issue:
2
Fulltext / DOI:
doi:10.1103/physrevb.109.024441
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
30.01.2024
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