The role of Dy incorporation in the magnetic behavior and structural characterization of synthetic Ce, Bi-substituted yttrium iron garnet

doi:10.1016/j.matchemphys.2020.122838

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	The role of Dy incorporation in the magnetic behavior and structural characterization of synthetic Ce, Bi-substituted yttrium iron garnet
	Khalifeh, M.R.2; Shokrollahi, H.2; Arab, S.M.1; Yang, H.3
刊名	Materials Chemistry and Physics
	2020-06-01
卷号	247
关键词	Bismuth compounds Cerium oxide Crystal structure Dysprosium Dysprosium compounds Hematite Iron Magnetic properties Metal ions Phase structure Photoelectrons Photons Raman spectroscopy Saturation magnetization Scanning electron microscopy Seismic waves Structural properties Wave functions X ray diffraction X ray photoelectron spectroscopy Yttrium iron garnet Yttrium metallography Ceramic methods Characteristic peaks Conventional methods Sensing applications Stoichiometric ratio Structural characterization Vibrating sample magnetometer X-ray diffraction data
ISSN号	02540584
DOI	10.1016/j.matchemphys.2020.122838
英文摘要	In this Study, the effects of substitution of Y3+ by Dy3+ ions on the crystal structure and magnetic properties for Y2.8-xDyxCe0.10Bi0.10Fe5O12 (x = 0.0, 0.2, 0.4, 0.6) and pure yttrium iron garnet (YIG) produced by conventional method have been investigated. The Fe2O3, Y2O3, CeO2 and Dy2O3 powders were mixed in stoichiometric ratio and annealed at different temperatures from 1000 to 1420 °C in air atmosphere. At the final stage, Bi2O3 was aggraded in the YIG and annealed in 1000 °C in an air atmosphere. The phase structure, morphology and magnetic properties were investigated using Raman Spectroscopy (RS), X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscope (SEM) and Vibrating Sample Magnetometer (VSM), respectively. The X-ray diffraction data showed a nearly pure and single-phase of doped garnet with small amounts of CeO2 secondary phase. The RS result reveals the characteristic peak of the YIG structure. The XPS analysis indicates that bismuth, dysprosium, yttrium and iron ions exist in their corresponding "+3" valence states whereas cerium finds in "+3" and "+4". The saturation magnetization augments from 33.47 emu/g for pure YIG to 35.15 emu/g for xDy = 0.2 due to the small increase in d-p wave function overlap between the octahedral Fe3+ ion and intervening oxygen ion. The coercivity values decrease from 20.16 Oe for pure YIG to 17.78 Oe for xDy = 0.6. The improved magnetic properties promote the doped garnets to microwave absorption and sensing applications. © 2020 Elsevier B.V.
WOS研究方向	Materials Science
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000530647200038
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115625]
专题	兰州理工大学
作者单位	1.Department of Mechanical Engineering, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran; 2.Electroceramics Group, Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz, Iran; 3.School of Science, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Khalifeh, M.R.,Shokrollahi, H.,Arab, S.M.,et al. The role of Dy incorporation in the magnetic behavior and structural characterization of synthetic Ce, Bi-substituted yttrium iron garnet[J]. Materials Chemistry and Physics,2020,247.
APA	Khalifeh, M.R.,Shokrollahi, H.,Arab, S.M.,&Yang, H..(2020).The role of Dy incorporation in the magnetic behavior and structural characterization of synthetic Ce, Bi-substituted yttrium iron garnet.Materials Chemistry and Physics,247.
MLA	Khalifeh, M.R.,et al."The role of Dy incorporation in the magnetic behavior and structural characterization of synthetic Ce, Bi-substituted yttrium iron garnet".Materials Chemistry and Physics 247(2020).