在化学上有序和无序的FeAl薄膜中识别磁相.
A Zarzycki1, M S Anwar2, R Bali2
1Institute of Nuclear Physics Polish Academy of Sciences Radzikowskiego 152 31-342 Krakow Poland.
RSC advances
|November 19, 2024
概括
直接磁性写作在Fe60Al40薄膜中产生了不同的纳米级磁相. 这些相表现出独特的磁性,包括交换弹的行为和低温的自旋玻璃特征,对于自旋电子设备至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术纳米技术
背景情况:
- 直接磁性写作为制造用于数据存储和自旋电子的纳米级元件提供了一种新的方法.
- 在局部化学干扰时,Fe60Al40薄膜表现出明显的磁相,产生具有不同磁化和强制性的纳米级区域.
研究的目的:
- 研究Fe60Al40薄膜中共存的纳米磁相的磁性特性和相互作用机制.
- 了解化学排序对这些薄膜磁性行为的影响,以获得潜在的自旋电子应用.
主要方法:
- 制造Fe60Al40薄膜. 制造Fe60Al40薄膜. 制造Fe60Al40薄膜. 制造Fe60Al40薄膜. 制造Fe60Al40薄膜.
- 通过辐射诱导局部化学干扰,以产生不同的磁相 (非辐射铁磁区域 - NIFM和辐射铁磁区域 - IMF).
- 磁性特性和共存相之间的相互作用机制的表征.
主要成果:
- 形成了具有不同磁性 (低磁化/高强制性NIFM和高磁化/低强制性IMF) 的相邻纳米级区域.
- 观察到交换弹行为的证据,尽管直接交换合通常不存在.
- 这两种磁结构相在低温下都表现出类似自旋玻璃的特性.
结论:
- 化学排序显著影响Fe60Al40薄膜的磁性.
- 观察到的磁性行为,包括交换弹和旋转玻璃属性,对于推进旋转电子设备功能至关重要.
- 合金中可控制的磁性特性可以通过理解和操纵化学序列来实现.
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