Temperature dependence of domain wall resonance in CrBr3

Abstract
Domain wall resonance has been observed in the purely uniaxial Heisenberg ferromagnet, CrBr3. In zero applied field the resonance frequency is observed to vary between 250 and 730 MHz and to decrease with the increasing sample thickness. The increase in the frequency with the applied in‐plane field and the slight variation of the frequency with temperature are in good agreement with the Morkowski model.

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