Effect of Zr-substitution on the magnetic property of a YIG ferrite

S. J. Yang, S. D. Kim, J. S. Kim

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

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, Y2.1Ca0.9Fe 4.4-xV0.5In0.05Al0.05Zr xO12 with x=0, 0.05, 0.1 and 0.2, were prepared by the conventional ceramic sintering process. The Zr-substituted YIG ferrite, Y 2.1Ca0.9Fe4.4-xV0.5In 0.05Al0.05ZrxO12, 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.

Original languageEnglish
Pages (from-to)1077-1080
Number of pages4
JournalMaterials Science Forum
Volume449-452
Issue numberII
DOIs
StatePublished - 2004
EventDesigning, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials - Jeju Island, Korea, Republic of
Duration: 5 Nov 20038 Nov 2003

Keywords

  • Ferromagnetic resonance
  • Magnetic property
  • Microwave ferrite
  • YIG

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