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Updated: Jun 1, 2026

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Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
Published on: October 27, 2018
矿,LiNbO3,玉合金,以及MO3的 (In(1-x) M(x)) 六角多态形态
Alexei A Belik1, Takao Furubayashi, Hitoshi Yusa
1International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. alexei.belik@nims.go.jp
Journal of the American Chemical Society
|May 25, 2011
概括
这项研究合成和表征了 (In(1-x) M(x)) MO(3) 的三个阶段,揭示了 LiNbO(3),金刚石和六角形阶段的独特晶体结构和磁性排序温度. 材料在压力下经历可逆转变,影响了阴离子排序和磁性.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 研究具有可调节磁性和结构性质的新材料对于先进的应用至关重要.
- 了解复杂氧化物中的相变化和阴离子排序,可以为材料设计提供信息.
- 和铁添加的氧化物为探索多铁和磁现象提供了机会.
研究的目的:
- 合成和描述 (In(1-x) M(x)) MO(3) 的不同晶体相,其中M = Fe(0.5) Mn(0.5).
- 为了阐明LiNbO的晶体结构和磁性属性{3},金刚石和六角形相.
- 在不同压力和温度条件下研究离子排序和相变态行为.
主要方法:
- 高压和高温合成. 高压和高温合成.
- 同步射线X射线粉末衍射用于晶体结构的确定.
- 不同热分析,磁性测量和莫斯巴尔光谱仪用于属性评估.
主要成果:
- 成功制备了LiNbO{3},金刚石和 (In{1-x) M{x)) MO{3} 的六角相.
- 确定每个阶段的晶体结构和格子参数,分别识别空间组R3c,R-3c和P6(3) / mmc.
- 对每个相 (270 K,200 K和140 K) 观察到不同的反铁磁排序温度 (T(N)) 并记录了相转换期间的阴离子乱/顺序过渡.
- 证实了在5GPa时可逆转化为矿GdFeO(3) 型结构的可逆转化.
结论:
- 合成的 (In(1-x) M(x)) MO(3) 具有独特的磁性,具有独特的结构相.
- 阴离子排序在观察到的相位转换和磁性行为中起着重要作用.
- 该材料在压力下经历可逆结构转变的能力突出显示了其对响应性材料应用的潜力.
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