CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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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 School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China;
2 School of Physics, Nanjing University, Nanjing 210093, China |
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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.
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Received: 03 November 2016
Revised: 04 February 2017
Accepted manuscript online:
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PACS:
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75.47.Lx
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(Magnetic oxides)
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82.80.Ej
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(X-ray, M?ssbauer, and other γ-ray spectroscopic analysis methods)
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81.10.Dn
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(Growth from solutions)
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81.40.Rs
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(Electrical and magnetic properties related to treatment conditions)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11004095, 11104134, 61271077, 50977042, and 10904061). |
Corresponding Authors:
Dongming Tang
E-mail: dmtang@nju.edu.cn
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Cite this article:
Yuan Liu(刘园), Xiang Wang(王翔), Jie Zhu(朱杰), Runsheng Huang(黄润生), Dongming Tang(唐东明) Structure dependence of magnetic properties in yttrium iron garnet by metal-organic decomposition method 2017 Chin. Phys. B 26 057501
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