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Atomic hydrogenation-induced paramagnetic-ferromagnetic transition in zinc ferrite
Xiang, QY; Wu, D; Bai, Y; Yan, K; Yao, WQ; Zhang, L; Zhang, J; Cao, JL; Zhang J(张静)
2016
发表期刊CERAMICS INTERNATIONAL
卷号42期号:15页码:16882-16887
文章类型期刊论文
摘要A paramagnetic-ferromagnetic transition was observed in normal spinel zinc ferrite (ZnFe2O4) during atomic hydrogenation at room temperature. Magnetic measurements showed enhanced ferromagnetic property with increasing hydrogenation time. The hydrogenated ZnFe2O4 has normal spinel structure according to X-ray diffraction (XRD) and Raman analyses. Iron hydride was found from the XRD and X-ray absorption fine structure results. No A-B site ions exchange was observed in the x-ray absorption spectra while the atomic distances of Fe-O, Zn-O, Fe-Fe, Zn-Zn and Fe-Zn coordinations were reduced. A hybrid of Fe2+ and Feat in hydrogenated ZnFe2O4 can be further revealed through deconvolution of x-ray absorption near edge structure. The paramagnetic-ferromagnetic transition and enhanced ferromagnetic property were mainly due to the formation of iron hydride and the B-site super-exchange interactions of Fe2+ and Fe3+. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
关键词Zinc ferrite Atomic hydrogenation Magnetic transition X-ray absorption fine structure
DOI10.1016/j.ceramint.2016.07.185
关键词[WOS]MAGNETIC-PROPERTIES ; TEMPERATURE ; TIO2 ; NANOPARTICLES ; CONDUCTIVITY
语种英语
WOS类目Materials Science, Ceramics
WOS记录号WOS:000384784100059
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260363
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Xiang, QY,Wu, D,Bai, Y,et al. Atomic hydrogenation-induced paramagnetic-ferromagnetic transition in zinc ferrite[J]. CERAMICS INTERNATIONAL,2016,42(15):16882-16887.
APA Xiang, QY.,Wu, D.,Bai, Y.,Yan, K.,Yao, WQ.,...&张静.(2016).Atomic hydrogenation-induced paramagnetic-ferromagnetic transition in zinc ferrite.CERAMICS INTERNATIONAL,42(15),16882-16887.
MLA Xiang, QY,et al."Atomic hydrogenation-induced paramagnetic-ferromagnetic transition in zinc ferrite".CERAMICS INTERNATIONAL 42.15(2016):16882-16887.
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