稀土微量元素对外界多铁元素的兴奋剂用于对磁性属性的节能远程控制
Matthieu Liparo1, Jean-Philippe Jay1, Bohdan Kundys2
1Laboratoire d'Optique et de Magnétisme (OPTIMAG), UR 938, Univ. Brest, 29200, Brest, France.
Scientific reports
|February 17, 2025
概括
研究人员开发了一种用于光学控制磁性的新方法,使用稀土杂的多铁元素. 这一进步使能用可见光对静态和动态磁性属性的能效远程控制成为可能,用于先进的数据存储和传感.
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:
- 对磁性的光学控制对于开发先进的无线数据存储和传感技术至关重要.
- 现有的方法缺乏优化弹性相互作用,磁力强制性和铁磁共振线宽的一般途径,以实现低损失的动态功能.
- 外在的多铁元素为光诱导的磁性属性控制提供了潜力.
研究的目的:
- 展示一种通用途径,以节能远程光学控制静态和动态磁性.
- 调查稀土微量元素在外部多铁元素中用于增强光磁控制的使用.
- 建立光学调节磁器件的基础.
主要方法:
- 制造稀土微量元素合的外部多铁异构结构.
- 用非脉冲可见光照明,以诱导铁电基板中的光束约束.
- 在铁磁薄膜中的磁性特性 (静态和动态) 的应变介导调制的表征.
- 分析光,应变和磁力之间的相互作用.
主要成果:
- 稀土微量元素的兴奋剂显著增强了铁磁层的强磁性.
- 可见光照明会诱导铁电基板的应变,这反过来又会改变化层的磁性.
- 通过光诱导应变证明了静态和动态磁性属性的节能遥控.
- 通过联合优化弹性相互作用和磁性特性,实现了低损失的动态功能.
结论:
- 开发的稀土杂的外部多铁系统为光学遥控磁力提供了通用和有效的方法.
- 这种光-应变-磁性相互作用机制可扩展到广泛的可光调节磁性设备.
- 这些发现为更快,更有效的无线数据存储和传感应用铺平了道路.
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