Abstract
The magnetism of the colossal magnetoresistance material FeCr2S4 was studied through substitution by nonmagnetic element Cd. With the increase of Cd content, the high-field magnetization measured at 5 K increases, demonstrating a ferromagnetic Cr–Cr interaction in CdCr2S4. As comparing with the anti-ferromagnetic material ZnCr2S4, it is deduced that the ferromagnetic interaction in CdCr2S4 is favored by its larger Cr–Cr distance. On the other hand, due to Cd substitution, the low-field magnetization irreversibility between zero-field-cooling and field-cooling magnetization weakens with the increase of Cd content and disappears at last when x = 1 in the Fe1−x Cd x Cr2S4 (0 ≤ x ≤ 1.0) system. By taking account of the single-ion anisotropy of the ferrous ion on the tetrahedral site, the picture of irreversible magnetic behavior induced by magnetic anisotropy is examined.
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This work was supported by the National Natural Science Foundation of China (Grant No. 11074258) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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Jia, N., Fang, B. & Yang, Z. Magnetism of colossal magnetoresistance material Fe1−x Cd x Cr2S4 . Appl. Phys. A 116, 839–843 (2014). https://doi.org/10.1007/s00339-013-8174-5
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DOI: https://doi.org/10.1007/s00339-013-8174-5