An investigation of low-field magnetoresistance in the double perovskites Sr2Fe1-xZnxMoO6, x=0, 0.05, 0.15 and 0.25
文献类型：期刊论文
| 作者 | Lu MF ; Wang JP ; Liu JF ; Hao MF ; Zhou DF ; Liu XJ ; Wu ZJ ; Meng J |
| 刊名 | journal of physics-condensed matter
 |
| 出版日期 | 2006 |
| 卷号 | 18期号:5页码:1601-1612 |
| 关键词 | SR2FEMOO6 DOUBLE PEROVSKITE FE-SITE TEMPERATURE MAGNETIZATION BA2FEMOO6 CRYSTAL SYSTEM |
| ISSN号 | 0953-8984 |
| 通讯作者 | lu mf |
| 中文摘要 | the electrical, magnetic and transport properties of zn doped polycrystalline samples of sr2fe1-xznxmoo6 ( x = 0, 0.05, 0.15 and 0.25) with the double perovskite structure have been investigated. the subtle replacement of fe3+ ions by zn2+ ions facilitates the formation of a more ordered structure, while further substitution leads to disordered structure because of the presence of a striped phase. analysis of the x-ray powder diffraction patterns based on rietveld analysis indicates that the replacement of fe3+ by zn2+ ions favours the formation of mo6+ ions. the spin-glass behaviour can be explained on the basis of the competition between the antiferromagnetic superexchange and the ferromagnetic double-exchange interaction. the low-field magnetoresistance was moderately enhanced at x = 0.05, and its origin was found to be the competition between the decrease of the concentration of the itinerant electrons and the weaker antiferromagnetic superexchange in the antiphase boundaries. an almost linear negative magnetoresistance in moderate field has been observed for x = 0.25. a possible double-exchange mechanism is proposed for elucidating the observations; it also suggests a coexistence of (fe3+, mo5+) and (zn2+, mo6+) valence pairs. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235921400016 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16373]  |
| 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 | Lu MF,Wang JP,Liu JF,et al. An investigation of low-field magnetoresistance in the double perovskites Sr2Fe1-xZnxMoO6, x=0, 0.05, 0.15 and 0.25[J]. journal of physics-condensed matter,2006,18(5):1601-1612. |
| APA | Lu MF.,Wang JP.,Liu JF.,Hao MF.,Zhou DF.,...&Meng J.(2006).An investigation of low-field magnetoresistance in the double perovskites Sr2Fe1-xZnxMoO6, x=0, 0.05, 0.15 and 0.25.journal of physics-condensed matter,18(5),1601-1612. |
| MLA | Lu MF,et al."An investigation of low-field magnetoresistance in the double perovskites Sr2Fe1-xZnxMoO6, x=0, 0.05, 0.15 and 0.25".journal of physics-condensed matter 18.5(2006):1601-1612. |
入库方式： OAI收割
来源：长春应用化学研究所
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