Parametric excitation of spin waves in strongly anisotropic uniaxial ferrites

被引：0

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

来源：

Physics of the Solid State | 1999年 / 41卷

关键词：

Spectroscopy; Magnetic Field; Anisotropy; Ferrite; State Physics;

D O I：

暂无

中图分类号：

学科分类号：

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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