Valence Control of Ce Ions in Cerium-substituted Yttrium Iron Garnet

Cerium-substituted yttrium iron garnet( CexY3-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 conglobatian 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 Ce 3 changes the magnetic parameters of YIG. The effects of doping content of Ce ions and synthesis temperature on valence control were discussed in detail.

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

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.