中国物理B ›› 2017, Vol. 26 ›› Issue (5): 57501-057501.doi: 10.1088/1674-1056/26/5/057501

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Structure dependence of magnetic properties in yttrium iron garnet by metal-organic decomposition method

Yuan Liu(刘园), Xiang Wang(王翔), Jie Zhu(朱杰), Runsheng Huang(黄润生), Dongming Tang(唐东明)   

  1. 1 School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China;
    2 School of Physics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2016-11-03 修回日期:2017-02-04 出版日期:2017-05-05 发布日期:2017-05-05
  • 通讯作者: Dongming Tang E-mail:dmtang@nju.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11004095, 11104134, 61271077, 50977042, and 10904061).

Structure dependence of magnetic properties in yttrium iron garnet by metal-organic decomposition method

Yuan Liu(刘园)1, Xiang Wang(王翔)2, Jie Zhu(朱杰)1, Runsheng Huang(黄润生)2, Dongming Tang(唐东明)1   

  1. 1 School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China;
    2 School of Physics, Nanjing University, Nanjing 210093, China
  • Received:2016-11-03 Revised:2017-02-04 Online:2017-05-05 Published:2017-05-05
  • Contact: Dongming Tang E-mail:dmtang@nju.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11004095, 11104134, 61271077, 50977042, and 10904061).

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摘要：

The yttrium iron garnet (YIG) samples are prepared at different temperatures from 900 ℃ to 1300 ℃ by the metal-organic decomposition (MOD) method. The chemical composition and crystal structure of the samples are studied by scanning electron microscope (SEM), XRD, and Mössbauer spectrometer. It is shown that the ratio of ferric ions on two types of sites, the octahedral and the tetrahedral, is increased with the sintering temperature. At 1300 ℃, the pure garnet phase has been obtained, in which the ferric ions ratio is 2:3 leading to the minimum magnetic coercivity and maximum saturation magnetization. These results provide a route to synthesize pure YIG materials as the basic materials used in various spintronics applications.

关键词: yttrium iron garnet, metal-organic decomposition method, Mössbauer spectrometer, magnetic materials

Abstract:

The yttrium iron garnet (YIG) samples are prepared at different temperatures from 900 ℃ to 1300 ℃ by the metal-organic decomposition (MOD) method. The chemical composition and crystal structure of the samples are studied by scanning electron microscope (SEM), XRD, and Mössbauer spectrometer. It is shown that the ratio of ferric ions on two types of sites, the octahedral and the tetrahedral, is increased with the sintering temperature. At 1300 ℃, the pure garnet phase has been obtained, in which the ferric ions ratio is 2:3 leading to the minimum magnetic coercivity and maximum saturation magnetization. These results provide a route to synthesize pure YIG materials as the basic materials used in various spintronics applications.

Key words: yttrium iron garnet, metal-organic decomposition method, Mössbauer spectrometer, magnetic materials

中图分类号:  (Magnetic oxides)

  • 75.47.Lx
82.80.Ej (X-ray, M?ssbauer, and other γ-ray spectroscopic analysis methods) 81.10.Dn (Growth from solutions) 81.40.Rs (Electrical and magnetic properties related to treatment conditions)