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Spin wave mediated non-reciprocal effects in antiferromagnets

J. M. Roman·J. Soto
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Abstract

By using an effective field theory for the electromagnetic interaction of spin waves, we show that, in certain antiferromagnets, the latter induce non-reciprocal effects in the microwave region, which should be observable in the second harmonic generation and produce gyrotropic birefringency. We calculate the various (non-linear) susceptibilities in terms of a few parameters the order of magnitude of which is under control.

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J. M. Roman, J. Soto. 1999-06-18. Spin wave mediated non-reciprocal effects in antiferromagnets. https://doi.org/10.1006/aphy.1998.5891

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