Synthesis, structural and electrical characterizations of Sr2Fe1-xMxNbO6 (M = Zn and Cu) with double perovskite structure
文献类型：期刊论文
| 作者 | Xia T ; Liu XD ; Li Q ; Meng J ; Cao XQ |
| 刊名 | journal of alloys and compounds
 |
| 出版日期 | 2006 |
| 卷号 | 422期号:1-2页码:264-272 |
| 关键词 | MAGNETIC-PROPERTIES TRANSPORT PROPERTIES NEUTRON-DIFFRACTION CURIE-TEMPERATURE ION-TRANSPORT SR SR2CRREO6 MOSSBAUER BA MAGNETORESISTANCE |
| ISSN号 | 0925-8388 |
| 通讯作者 | cao xq |
| 中文摘要 | sr2fe1-xznxnbo6-x/2 (0 <= x <= 0.5) and sr2fe1-xcuxnbo6-x/2 (0.01 <= x <= 0.05) with the double perovskite structure have been synthesized. the crystal structures at room temperature were determined from rietveld refinements of x-ray powder diffraction data. the plots of the imaginary parts of the impedance spectrum, z '', and the electric modulus, m '', versus log (frequency), possess maxima for both curves separated by less than a half decade in frequency with associated capacities of 2 nf. the enhancement of the overall conductivity of sr2fe1-xmxnbo6-x/2 (m = cu and zn) is observed, as increases from 2.48 (3) x 10(-4) s/cm for sr2fenbo6 to 3.82 (5) x 10(-3) s/cm for sr2fe0.8zn0.2nbo5.9 at 673 k. sr2fe0.8zn0.2nbo5.9 is chemically stable under the oxygen partial pressure from 1 atm to 10(-22) atm at 873 k. the p and n-type electronic conductions are dominant under oxidizing and reducing conditions, respectively, suggesting a small-polaron hopping mechanism of electronic conduction. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000240579500047 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16549]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xia T,Liu XD,Li Q,et al. Synthesis, structural and electrical characterizations of Sr2Fe1-xMxNbO6 (M = Zn and Cu) with double perovskite structure[J]. journal of alloys and compounds,2006,422(1-2):264-272. |
| APA | Xia T,Liu XD,Li Q,Meng J,&Cao XQ.(2006).Synthesis, structural and electrical characterizations of Sr2Fe1-xMxNbO6 (M = Zn and Cu) with double perovskite structure.journal of alloys and compounds,422(1-2),264-272. |
| MLA | Xia T,et al."Synthesis, structural and electrical characterizations of Sr2Fe1-xMxNbO6 (M = Zn and Cu) with double perovskite structure".journal of alloys and compounds 422.1-2(2006):264-272. |
入库方式： OAI收割
来源：长春应用化学研究所
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