Magnetic Spectra and Richter Aftereffect Relaxation in Zirconium-Doped Yttrium Iron Garnet Ferrites

被引：10

作者：

Chen, Fu ^{[1
]}

Li, Qifan ^{[1
]}

Wang, Xian ^{[1
]}

Feng, Zekun ^{[1
]}

Chen, Yajie ^{[2
]}

Harris, Vincent G. ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China

[2] Northeastern Univ, Dept Elect & Comp Engn, Ctr Microwave Magnet Mat & Integrated Circuits, Boston, MA 02115 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 11期

关键词：

Richter aftereffect; yttrium iron garnet (YIG); zirconium; YIG;

D O I：

10.1109/TMAG.2015.2444424

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The magnetic property and the magnetic aftereffect relaxation of zirconium (Zr)-doped yttrium iron garnet (YIG) Y3Fe(5-x)ZrxO12+ x/2 (x = 0 and 0.1) have been investigated. The ferrites were fabricated by the traditional solid-state reaction method. A crystalline structure and an elemental spectrum analysis were identified by powder X-ray diffraction and using X-ray photoelectron spectroscopy, respectively. Both of the ferrite samples reveal a single-phase garnet structure, but show a visible difference in permeability spectra between the two samples over a frequency of 1 MHz-1 GHz. It is verified that the Zr-doped YIG ferrite contains the contribution of Richter aftereffect relaxation to magnetic spectrum due to the existence of Fe2+ ions. The fitting of the permeability spectra in terms of the Richter model is in agreement with experimental data, which successfully accounts for the causes of magnetic losses observed at 1 MHz-1 GHz for the Zr-doped YIG ferrite.

引用

页数：4

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