Valence control of ce Ions in cerium-substituted yttrium iron garnet

Song Fengbing; Li Qiang; Zhong Zhifeng

doi:10.1007/BF02870861

Journal of Wuhan University of Technology Materials Science Edition ›› 2005, Vol. 20 ›› Issue (1) : 6 -8. DOI: 10.1007/BF02870861

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Valence control of ce Ions in cerium-substituted yttrium iron garnet

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Abstract

Cerium-substituted yttrium iron garnet (Ce_xY_3−xFe₅O₁₂, Ce: YIG) was prepared via coprecipitation. The structure, morphology, valence state and constituent of Ce ions were investigated respectively. X-ray powder diffraction (XRD) analysis shows that Ce: YIG was of single cubic YIG phase. The result of X-ray photoelectron spectroscopy (XPS) indicates the Ce ions in Ce: YIG were in the state of trivalence. Scanning electron microscope (SEM) demonstrates the conglobation of Ce: YIG particles about 0.2μm scale. The magnetic properties were studied by a vibrating sample magnetometer (VSM) and the result exhibits that substitution of Ce³⁺ changes the magnetic parameters of YIG. The effects of doping content of Ce ions and synthesis temperature on valence control were discussed in detail.

Keywords

cerium-substituted yttrium iron garnet / coprecipitation / valence control / Ce³⁺

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Song Fengbing, Li Qiang, Zhong Zhifeng. Valence control of ce Ions in cerium-substituted yttrium iron garnet. Journal of Wuhan University of Technology Materials Science Edition, 2005, 20(1): 6-8 DOI:10.1007/BF02870861

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References

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