Abstract

The equilibrium positions of sublattice magnetizations and the resonance frequencies of the antiferromagnet having the Dzyaloshinsky-Moriya vector parallel with the easy axis are calculated for arbitrary directions of the applied field. The effect of the parallel susceptibility has been taken into account in the calculation. The results are compared with the experiments on KMnF 3 in the intermediate temperature range. Good agreement is obtained, supporting that the crystal has the Dzyaloshinsky-Moriya vector parallel with the easy axis.

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