在Te-Incorporated LaCoO3对多功能设备应用的结构,形态和磁性特性的影响
Jhelai Sahadevan1, P Sivaprakash2, S Esakki Muthu1
1Department of Physics, Karpagam Academy of Higher Education, Coimbatore 641021, India.
International journal of molecular sciences
|June 28, 2023
概括
我们合成了以浸的LaCoO3 (Te-LCO) 用于磁性应用. 将 (Te) 添加到LaCoO3 (LCO) 中,在室温下成功将材料从偏磁性转变为弱铁磁性.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 磁力学 磁力学 是一种
背景情况:
- 高矿活性对于磁性应用至关重要.
- 兰化 (LaCoO3) 是一个有前途的材料,但在室温下通常是偏磁的.
- 在室温下提高矿磁性质是一个活跃的研究领域.
研究的目的:
- 为了合成具有增强磁性特性的浸的LaCoO3 (Te-LCO).
- 为了研究Te-LCO的结构稳定性和磁性行为.
- 探索Te-LCO在室温磁性应用中的潜力.
主要方法:
- 简单的合成Te-LCO使用球磨,化学还原和热水方法.
- 使用X射线光电子光谱 (XPS) 和传输电子显微镜 (TEM) 的结构分析.
- 通过测量磁化 (M-H) 的室温场依赖性来评估磁性属性.
主要成果:
- 成功合成了具有六角晶体结构的Te-LCO,证实Te通过TEM被纳入LCO.
- 在Te浸后观察到LCO从偏磁到弱铁磁状态的转变,由hysteresis证明.
- 由于缺乏氧气,XPS表明了磁性优势的酸盐氧化状态和混合的Te价值状态.
结论:
- 浸显著增强了LaCoO3在室温下的磁性特性.
- 在Te-LCO中观察到的弱铁磁性和歇斯底里是由于Te的纳入和氧气缺乏造成的.
- Te-LCO为需要室温磁性活动的先进多功能和能源应用提供了一种低成本,有前途的材料.
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