Exciton motion in CrSBr is driven by incoherent magnon currents, producing enhanced isotropic transport near the Neel temperature and superdiffusive spreading in bilayers.
At low temperature and for a sufficiently small fluence, we consistently observe a contraction of the exciton cloud
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Exciton transport driven by spin excitations in an antiferromagnet
Exciton motion in CrSBr is driven by incoherent magnon currents, producing enhanced isotropic transport near the Neel temperature and superdiffusive spreading in bilayers.