研究Cr2+化SnFe2O4旋铁的结构,光学,振动和介电性质
Abid Zaman1, Asad Ali2, Hifsa Shahid3
1Department of Physics, Riphah International University Islamabad 44000 Pakistan zaman.abid87@gmail.com.
RSC advances
|October 9, 2025
概括
在锡铁 (SnFe2O4) 中 (Cr2+) 的化增强了其介电性质,并减少了泄漏电流. 这使得杂材料对存储器设备和传感器等先进应用具有前景.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 纳米技术纳米技术
背景情况:
- 锡铁酸盐 (SnFe2O4) 是一种有前途的材料,可用于各种电子设备.
- 了解兴奋剂对其性能的影响对于材料优化至关重要.
研究的目的:
- 调查Cr2+兴奋剂对SnFe2O4旋铁矿结构,光学,微观结构和介电性质的影响.
- 评估Cr2+化SnFeO4的适用性,用于电子应用.
主要方法:
- 传统的固态合成路径.
- 用于结构分析的X射线衍光测量 (XRD).
- 扫描电子显微镜 (SEM) 用于微观结构的表征.
- 紫外线视频谱测用于光学带间隙的确定.
- 福里埃变换红外光谱法 (FTIR) 用于振动分析.
- 在各种频率和Cr2+度下测量介电性质.
主要成果:
- 通过XRD证实单相立方螺旋结构,在Cr2+兴奋剂后,晶格参数和晶体体大小降低.
- 通过SEM观察到具有缩小颗粒大小的均微观结构.
- 光带间隙从2.58 eV减少到2.32 eV.
- 介电性质受到Cr2+度的显著影响,显示出更好的电阻粒边界行为和频率稳定性.
- 降低介电损失 (tan δ) 和交流导电性 (σac) 随着Cr2+含量的增加,导致泄漏电流的减少.
结论:
- 2+兴奋剂有效地改变了SnFe2O4的特性.
- 由于兴奋剂,观察到增强的电荷传输和减少的极化.
- 该材料显示出在内存设备,传感器和自旋电子元件中的应用潜力.
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