In a two-sublattice model of GdIG, thermal spin current from right- and left-handed magnons cancels at TA ≈ 0.3 TB, a compensation that is not tied to crossing of the magnon dispersion branches.
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Spin current compensation from competing magnon modes in ferrimagnets
In a two-sublattice model of GdIG, thermal spin current from right- and left-handed magnons cancels at TA ≈ 0.3 TB, a compensation that is not tied to crossing of the magnon dispersion branches.