Magnetization Evolution with Hole Doping Level in (Sr2-xNax)FeMoO6

Qin Zhang; Chang Li; Zhen Feng Xu; Ke Yan Wang

doi:10.4028/www.scientific.net/AMR.239-242.3165

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Magnetization Evolution with Hole Doping Level in...

Magnetization Evolution with Hole Doping Level in (Sr₂_-xNa_x)FeMoO₆

Abstract:

Hole doped double perovskite 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. Similar to the electron doped Sr₂FeMoO₆, 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).

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Advanced Materials Research (Volumes 239-242)

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3165-3168

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https://doi.org/10.4028/www.scientific.net/AMR.239-242.3165

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May 2011

Authors:

Qin Zhang, Chang Li, Zhen Feng Xu, Ke Yan Wang

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Double-Perovskite, Hole Doping

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