根据LaMn1- Fe O3陶的结构,形态,电气和磁性特性进行定制
Priyanka Thakur1, Kais Iben Nassar2, Deepak Kumar3
1Department of Physics, Akal College of Basic Sciences, Eternal University Baru Sahib HP-173101 India madan.physics26@gmail.com.
RSC advances
|July 30, 2024
概括
在LaMnO3陶中使用铁的注会诱导结构变化,从面变为正面. 这项研究分析了铁兴奋剂对这些Fe-doped LaMnO3陶的结构,电和磁性能的影响.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 兰酸 (LaMnO3) 是一种具有有趣的电磁性质的矿氧化物.
- 用铁 (Fe) 等过渡金属合LaMnO3可以显著调整这些特性,以实现潜在的应用.
研究的目的:
- 为了比较分析Fe-doped LaMnO3陶的结构,形态,电气和磁性特性.
- 为了研究不同度的铁对材料性能的影响.
主要方法:
- 固态反应方法用于样品制备.
- 使用X射线衍射 (XRD),FTIR,FE-SEM,EDS和VSM进行表征.
- 瑞特维尔德提炼和威廉森-霍尔分析用于结构和应变评估.
主要成果:
- 观察到随着铁 doping 的增加而发生的结构性转变,从方圆形转变为正方形.
- 准球形态和均的元素分布得到证实.
- 观察到正常介电分散和负温度电阻系数 (NTCR) 的行为.
- 随着Fe度的增加,格子体积的增加会导致激活能量 (Ea) 的增加.
- 存在抗铁磁和弱铁磁排序;铁剂降低和磁化 (MS) 并增加强制性 (HC).
结论:
- 铁剂有效地改变了LaMnO3陶的结构,电和磁性.
- 观察到的变化与结构转换和粒子大小效应有关.
- 结果提供了关于为特定应用量身定制Fe-doped LaMnO3的特性的见解.
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