Ferrimagnetic Resonance Linewidth in Dense Polycrystalline Ferrites
Ferrimagnetic Resonance Linewidth in Dense Polycrystalline Ferrites
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DOI：
10.1063/1.1702661
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发表时间：
1963-06
影响因子：
3.2
通讯作者：
P. Seiden;J. Grunberg
中科院分区：
文献类型：
--
作者：
P. Seiden;J. Grunberg
利用偶极子缩窄理论计算了多晶铁氧体的线宽，考虑了各向异性和孔隙率效应。结果表明，即使在非常致密的铁氧体中，孔隙度的增宽也是主要的增宽因素。钇铁石榴石和锰铁氧体样品的线宽随温度的变化规律与理论预测一致。
The linewidth of polycrystalline ferrites has been calculated from the dipole narrowing theory including both anisotropy and porosity effects. It is shown that porosity broadening is successfully accounted for and that porosity is the dominant line broadener even in very dense ferrites. The temperature dependence of the linewidth for samples of yttrium iron garnet and manganese ferrite are in good agreement with the predictions of the theory.