Polarized neutron scattering on a single-domain MnF2 crystal resolves two split magnon branches and shows a chiral scattering signal that reverses sign between branches, establishing MnF2 as an altermagnet.
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Altermagnetism revealed by polarized neutrons in MnF$_2$
Polarized neutron scattering on a single-domain MnF2 crystal resolves two split magnon branches and shows a chiral scattering signal that reverses sign between branches, establishing MnF2 as an altermagnet.