Parametric excitation of spin waves in strongly anisotropic uniaxial ferrites

被引:0
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作者
A. G. Gurevich
A. V. Nazarov
O. A. Chivileva
V. V. Petrov
机构
[1] Russian Academy of Sciences,A. F. Ioffe Physicotechnical Institute
[2] Research Institute DOMAIN,undefined
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关键词
Spectroscopy; Magnetic Field; Anisotropy; Ferrite; State Physics;
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摘要
The thresholds of parametric spin-wave excitation are measured in a Ba2Zn2Fe12O22 easy-plane ferrite at a pumping frequency of 36 GHz in the temperature range from 5 to 350 K at different angles between the external dc magnetic field and the anisotropy axis, where the pumping is, in a general case, oblique. The dependences of the spin-wave damping parameter on wave number, temperature, and the angle between the spin-wave propagation direction and the anisotropy axis have been found. The results of measuring the ferromagnetic resonance parameters in this ferrite and an easy-axis Ba(Fe0.95Sc0.05)12O19 ferrite are presented. Conclusions on the relaxation processes in strongly anisotropic hexagonal ferrites are made.
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页码:1513 / 1519
页数:6
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