Theory of magnon–phonon interactions in antiferromagnets
S. A. BreusDonetsk Physicotechnical Institute, Academy of Sciences of the Ukrainian SSRV. L. SobolevDonetsk Physicotechnical Institute, Academy of Sciences of the Ukrainian SSRB. I. KhudikDonetsk Physicotechnical Institute, Academy of Sciences of the Ukrainian SSR
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The damping of magnons due to magnon–phonon interaction is investigated. The energy and temperature dependence of the damping of magnons of both branches of the spectrum is studied. It is shown that magnon–phonon interaction involving the lower as well as the upper branch of the spin-wave spectrum plays an important role in magnon damping.
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