Synthesis, structural and transport properties of Pr0.75Na0.25Mn1-xFexO3 (0.0 <= x <= 0.3)
文献类型：期刊论文
| 作者 | Y. Li ; E. Miao ; Y. Sui ; X. J. Wang ; W. Zhang ; Y. Q. Liu ; R. B. Zhu ; W. H. Su |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2007 |
| 卷号 | 441期号:1-2页码:40913 |
| 关键词 | chemical synthesis thermogravimetric analysis electron microscopy magnetization resistivity colossal magnetoresistance perovskite manganites magnetic-properties phase-separation substitution manganese charge pr0.5sr0.5mno3 pr1-xsrxmno3 temperature |
| ISSN号 | 0925-8388 |
| 中文摘要 | The single-phase polycrystalline perovskites Pr0.75Na0.25Mn1-xFexO3 (0 <= x <= 0.30) were prepared for the first time by a sol-gel technique, which offers shorter sintering time and lower temperature to avoid the volatilization of Na and the precipitation of manganese oxide. As a result, the maximum sodium solubility in Pr1-xNaxMnO3 and the degree of single-phase are significantly improved. The scanning electron microscope (SEM) results reveal that the sol-gel-derived compounds are agglomerated with fine primary particles. Both undoped and doped samples show two active IR vibrational modes at similar to 426 and similar to 607 cm(-1). The resistivity of the samples series exhibits insulator behavior. The resistivity decreases with increasing Fe doping for x <= 0.05, and increases subsequently with further increasing Fe doping. The effects of Fe doping on Pr0.75Na0.25Mn0.25FexO3 compounds can be analyzed from two different aspects, namely the geometric effect (size of the dopant) and electronic configurations. (C) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33657]  |
| 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 | Y. Li,E. Miao,Y. Sui,et al. Synthesis, structural and transport properties of Pr0.75Na0.25Mn1-xFexO3 (0.0 <= x <= 0.3)[J]. Journal of Alloys and Compounds,2007,441(1-2):40913. |
| APA | Y. Li.,E. Miao.,Y. Sui.,X. J. Wang.,W. Zhang.,...&W. H. Su.(2007).Synthesis, structural and transport properties of Pr0.75Na0.25Mn1-xFexO3 (0.0 <= x <= 0.3).Journal of Alloys and Compounds,441(1-2),40913. |
| MLA | Y. Li,et al."Synthesis, structural and transport properties of Pr0.75Na0.25Mn1-xFexO3 (0.0 <= x <= 0.3)".Journal of Alloys and Compounds 441.1-2(2007):40913. |
入库方式： OAI收割
来源：金属研究所
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