Abstract
Two-magnon absorption and Raman experiments create pairs of magnons in close proximity, and hence, the magnon-magnon interaction has an important effect on the spectral line shape. Green's-function methods have been used to calculate this effect and the results applied the example of cubic antiferromagnets like RbMn${\mathrm{F}}_{3}$. Similar techniques are used to find the effect of exciton-magnon interaction on the sidebands in RbMn${\mathrm{F}}_{3}$; corresponding experimental results are presented.
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