Magnetization and Hole Doping Effects in Double Perovskite Compound Sr2FeMoO6

Qin Zhang

doi:10.4028/www.scientific.net/AMM.513-517.223

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 513-517Magnetization and Hole Doping Effects in Double...

Magnetization and Hole Doping Effects in Double Perovskite Compound Sr₂FeMoO₆

Abstract:

Hole doped compounds (Sr, Na)₂FeMoO₆ with the Na content of x = 0, 0.02, 0.03, 0.07 and 0.17 have been synthesized by sol-gel method. Effects of hole doping on the crystal structure and magnetic properties of Sr₂FeMoO₆ have been investigated. XRD pattern indicates that all the samples are of single phase and belong to the space group I4/m. The degree of cation ordering in the Na-doped Sr₂FeMoO₆ compounds shows a non-monotonic variation with the doping level. The saturation magnetization of the compound increases with x for x<0.17. Provided that the doped hole enters selectively the spin-down band, the variation of the saturation magnetization can be explained in light of the ferrimagnetic model (FIM), which is Similar to the electron doped Sr₂FeMoO₆.

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Applied Mechanics and Materials (Volumes 513-517)

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223-226

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https://doi.org/10.4028/www.scientific.net/AMM.513-517.223

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February 2014

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Qin Zhang*

Keywords:

Double Perovskite, Hole Doping, Magnetization

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