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VOLUME 34 (1981) | ISSUE 1 | PAGE 22
Stimulated acoustic Raman scattering in an antiferromagnet
Parametric excitation of sound by sound has been observed in a magnetic material for the first time. The threshold strain amplitude in the pump wave can be achieved in practice in hematite single crystals, because it is easy to arrange a large effective anharmonicity of the elastic subsystem in antiferromagnets.