2022
DOI: 10.48550/arxiv.2206.10168
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Dipolar spin-waves and tunable band gap at the Dirac points in the 2D magnet ErBr3

C. Wessler,
B. Roessli,
K. W. Krämer
et al.

Abstract: Topological magnon insulators constitute a growing field of research for their potential use as information carriers without heat dissipation. We report an experimental and theoretical study of the magnetic ground-state and excitations in the van der Waals two-dimensional honeycomb magnet ErBr 3 . We show that the magnetic properties of this compound are entirely governed by the dipolar interactions which generate a continuously degenerate non-collinear ground-state on the honeycomb lattice with spins confined… Show more

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