Complex permeability of polycrystalline hexagonal ferrites
Complex permeability of polycrystalline hexagonal ferrites
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DOI：
10.1109/20.908844
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发表时间：
2000-04
期刊：
影响因子：
--
通讯作者：
T. Nakamura;K. Hatakeyama
中科院分区：
文献类型：
--
作者：
T. Nakamura;K. Hatakeyama
采用常规陶瓷烧结法制备了多晶六方晶系铁氧体（Y、Z和W相）。它们的复磁导率谱是自然共振型的，数值上可分离为自旋旋转和畴壁运动分量。对于自旋转动分量，发现它们的Snoek乘积值远远超过尖晶石铁氧体的乘积值。它使我们能够设计薄的准微波区的电磁波吸收剂。
Polycrystalline hexagonal ferrites (Y, Z and W-phases) were prepared by the usual ceramic sintering. Their complex permeability spectra were natural resonance type, and numerically separated into spin rotational and domain wall motion components. For the spin rotational component, it was found that the Snoek's product values of them were far beyond the product values of spinel ferrite. It enabled us to design thin electromagnetic wave absorbers for the quasimicrowave region.