Hole doping effects in (Sr2-xNax)FeMoO6 double perovskite
文献类型：期刊论文
| 作者 | Q. Zhang ; G. H. Rao ; Y. G. Xiao ; G. Y. Liu ; Y. Zhang ; J. K. Liang |
| 刊名 | Applied Physics a-Materials Science & Processing
 |
| 出版日期 | 2006 |
| 卷号 | 84期号:4页码:459-463 |
| 关键词 | electronic-structure magnetic-properties sr2femoo6 magnetoresistance temperature site |
| ISSN号 | 0947-8396 |
| 中文摘要 | Hole-doped double perovskite compounds (Sr,Na)(2)FeMoO6 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 by means of X-ray powder diffraction (XRD) and magnetic measurements. The XRD pattern indicates that all the samples are of single phase and belong to the space group I4/m. Due to the smaller ionic radius of Na+ than that of Sr2+ ions, the lattice constants and unit cell volume of the compound decrease slightly with x. The degree of cation ordering in the Na-doped Sr2FeMoO6 compounds shows a non-monotonic variation with the doping level, increasing from x=0 to x=0.03 and decreasing slightly with further increase of the doping. In contrast to the composition dependence of the degree of ordering, the Curie temperature of the compound decreases at low doping level and increases at high 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). |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34703]  |
| 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 | Q. Zhang,G. H. Rao,Y. G. Xiao,et al. Hole doping effects in (Sr2-xNax)FeMoO6 double perovskite[J]. Applied Physics a-Materials Science & Processing,2006,84(4):459-463. |
| APA | Q. Zhang,G. H. Rao,Y. G. Xiao,G. Y. Liu,Y. Zhang,&J. K. Liang.(2006).Hole doping effects in (Sr2-xNax)FeMoO6 double perovskite.Applied Physics a-Materials Science & Processing,84(4),459-463. |
| MLA | Q. Zhang,et al."Hole doping effects in (Sr2-xNax)FeMoO6 double perovskite".Applied Physics a-Materials Science & Processing 84.4(2006):459-463. |
入库方式： OAI收割
来源：金属研究所
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