Radiation of electromagnetic waves by magnons
Kotyuzhanskii B. Ya., Prozorova L. A., Svistov L. E.
Magnons have been excited in the weak ferromagnet FeB03 by a parallel-pumping method. Electromagnetic waves with a frequency ωρ/2, where ωρ is the pump frequency, were found to be radiated from these magnons. The emission spectrum was studied at various pump power levels, temperatures, and magnetic fields.