Gauge fields induce a quantized transverse spin conductivity σ^{xy}=α² sgn(m) ℏ/4π in Dirac magnons of a honeycomb ferromagnet, with AC resonance at the topological gap, as a magnonic analog of the quantum Hall effect.
Owerre, A first theoretical realization of honeycomb topological magnon insulator, Journal of Physics: Con- densed Matter28, 386001 (2016)
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Transport of Dirac magnons driven by gauge fields
Gauge fields induce a quantized transverse spin conductivity σ^{xy}=α² sgn(m) ℏ/4π in Dirac magnons of a honeycomb ferromagnet, with AC resonance at the topological gap, as a magnonic analog of the quantum Hall effect.