Spin superfluidity in noncollinear antiferromagnets

Abstract

We explore the spin superfluid transport in exchange interaction dominated three-sublattice antiferromagnets. The system in the long-wavelength regime is described by an $SO(3)$ invariant field theory. Additional corrections from Dzyaloshinskii-Moriya interactions or anisotropies can break the symmetry; however, the system still approximately holds a $U(1)$-rotation symmetry. Thus, the power-law spatial decay signature of spin superfluidity is identified in a nonlocal-measurement setup where the spin injection is described by the generalized spin-mixing conductance. We suggest iron jarosites as promising material candidates for realizing our proposal.

8 pages, 2 figures

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Cited by in corpus (8)

• Magnon dynamics in a Skyrmion-textured domain wall of antiferromagnets
• Spin pumping in noncollinear antiferromagnets
• Dzyaloshinskii-Moriya Induced Spin-Transfer Torques in Kagome Antiferromagnets
• Superfluid Spin Transistor
• Nonreciprocal superfluidlike topological spin transport
• Spin Hall effect of vorticity
• Hall mass and transverse Noether spin currents in noncollinear antiferromagnets
• Strain-induced manipulation of non-collinear antiferromagnets