电场控制低阻尼常数在长轴Co2FeSi/LiNbO3多铁体异构结构中的电场控制
Shinya Yamada1,2, Takamasa Usami1,2, Sachio Komori3
1Center for Spintronics Research Network, Graduate School of Engineering Science, The University of Osaka, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|September 17, 2025
概括
研究人员展示了一种表轴性Co2FeSi/LiNbO3多铁体异构结构,用于电场控制磁化动态. 应用电场降低了阻尼,为低能量的磁装置铺平了道路.
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
- 这就是Spintronics.
背景情况:
- 控制磁化动态对于开发先进的电子设备至关重要.
- 低能耗电力是现代电子产品的一个关键挑战.
- 多铁体异构结构为新的功能提供了潜力.
研究的目的:
- 通过实验证明一个表轴性Co2FeSi/LiNbO3多铁体异构结构.
- 为了研究这种异构结构中磁化动态的电场控制.
- 探索磁器件中低能耗功率的潜力.
主要方法:
- 制造一个表轴性Co2FeSi/LiNbO3多铁体异构结构.
- 磁化动态的实验性表征.
- 应用电场来调节材料属性.
主要成果:
- 异构表现出一个低缓常数 (α) 约为0.006.6.
- 施加电场使缓常数降低到大约0.004.4.
- 在Co2FeSi中磁化动态通过LiNbO3的压电应变和磁弹性合来控制.
结论:
- 在Co2FeSi/LiNbO3异构结构中,电场控制磁化动态是可行的.
- 这种方法可以减少阻尼,这对于高效的磁器件至关重要.
- 这项研究为实现低能耗的磁设备提供了一条途径.
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