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Effect of Zr-Substitution on the Magnetic Property of a YIG Ferrite

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Abstract:

Yttrium Iron Garnet (YIG) has been used as an important material in the Circulator/Isolator which is used in RF communication system, mobile phone, and satellite broadcasting, etc. In this study, we investigated the variation of electromagnetic properties of YIG ferrites for Isolator/Circulator application with Zr addition. The YIG ferrites, Y2.1Ca0.9Fe4.4-xV0.5In0.05Al0.05ZrxO12 with x=0, 0.05, 0.1 and 0.2, were prepared by the conventional ceramic sintering process. The Zr-substituted YIG ferrite, Y2.1Ca0.9Fe4.4-xV0.5In0.05Al0.05ZrxO12, showed the highest saturation magnetization (1097 gauss) at x=0.1. Good microwave properties were shown as isolation of 18.60 dB and insertion loss of 0.45 dB at x=0.2. In addition, the ferromagnetic resonance (FMR) linewidth decreased as Zr content increased

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Periodical:

Materials Science Forum (Volumes 449-452)

Pages:

1077-1080

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.449-452.1077

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Online since:

March 2004

Authors:

S.J. Yang, S.D. Kim, Ji Soon Kim

Keywords:

Ferromagnetic Resonance (FMR), Magnetic Property, Microwave Ferrite, Yttrium Iron Garnet (YIG) Sphere

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© 2004 Trans Tech Publications Ltd. All Rights Reserved

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