Influence of doping Al at Fe site on the magnetic structure and magnetotransport properties of Sr2FeMoO6
文献类型：期刊论文
| 作者 | X. J. Wang ; Y. Sui ; Z. N. Qian ; Z. G. Liu ; J. P. Miao ; X. Q. Huang ; Z. Lu ; R. B. Zhu ; J. G. Cheng ; W. H. Su |
| 刊名 | Acta Physica Sinica
 |
| 出版日期 | 2006 |
| 卷号 | 55期号:2页码:849-853 |
| 关键词 | Sr2FeMoO6 doping magnetic structure magnetotransport double-perovskite sr2femoo6 low-field magnetoresistance transport-properties disorder crystal |
| ISSN号 | 1000-3290 |
| 中文摘要 | Double perovskite Sr2FeMoO6 with Al doping at Fe site up to 30% were prepared by traditional solid-state reaction. The degree of the cation ordering of Sr2FeMoO6 increases with Al doping obviously as shown by the refinement of room-temperature Xray diffraction. The saturated magnetic moment per formula unit of these compounds decreases gradually with increasing Al concentration, but the magnetic moment per Fe ion increases markedly, which is consistent with the improvement of cation ordering. Basing on the analysis of magnetic structure with Al doping, doping of Al will lead to the formation of non-magnetic coupled Mo-O-Al-O-Mo chains, which can divide the large Mo-O-Fe ferrimagnetic region into smaller patches and enhance the low Field magnetoresistance. The formation of Fe-O-Fe antiphase boundaries are suppressed by the doping Al due to the improvement of the cation ordering, and the high field magnetoresistance that roots in spin-dependent scattering at the antiphase boundaries is reduced. Therefore, the total magnetoresistance reaches a maximum value at x = 0.15. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34530]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. J. Wang,Y. Sui,Z. N. Qian,et al. Influence of doping Al at Fe site on the magnetic structure and magnetotransport properties of Sr2FeMoO6[J]. Acta Physica Sinica,2006,55(2):849-853. |
| APA | X. J. Wang.,Y. Sui.,Z. N. Qian.,Z. G. Liu.,J. P. Miao.,...&W. H. Su.(2006).Influence of doping Al at Fe site on the magnetic structure and magnetotransport properties of Sr2FeMoO6.Acta Physica Sinica,55(2),849-853. |
| MLA | X. J. Wang,et al."Influence of doping Al at Fe site on the magnetic structure and magnetotransport properties of Sr2FeMoO6".Acta Physica Sinica 55.2(2006):849-853. |
入库方式： OAI收割
来源：金属研究所
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