Department of Physics and Astronomy: Publications and Other Research
Date of this Version
2-22-2021
Citation
Phys. Rev. B (Letter) 103, L060406 (2021)
https://doi.org/10.1103/PhysRevB.103.L060406
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.
Comments
©2021 American Physical Society
Used by permission.