在离子门的金属三层电路中,电气可切换的ON-OFF旋转轨道扭矩
Soobeom Lee1,2, Suhyeok An1, Eunchong Baek1
1Department of Physics and Chemistry, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea.
Science advances
|March 19, 2025
概括
研究人员在使用离子门的Pt/Co/Pt装置中展示了可切换的旋转轨道扭矩. 负电场显著增强了自旋轨道扭矩,为可编程的自旋电子设备铺平了道路.
科学领域:
- 这就是Spintronics.
- 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
背景情况:
- 旋转轨道扭矩是一种关键的电气技术,用于操纵旋转器件中的磁化.
- 开发用于动态磁化控制的高效方法对于推进自旋电子应用至关重要.
研究的目的:
- 在Pt/Co/Pt装置中报告门诱导的开关可切换的旋转轨道扭矩.
- 为了研究电门对旋转轨道扭矩效率的影响.
主要方法:
- 使用离子封锁技术将电场应用于一个Pt/Co/Pt自旋轨道装置.
- 从Pt层中操纵自旋电流以达到OFF状态.
- 测量了在不同门电场下增强类似阻尼的旋转轨道扭矩的增强.
主要成果:
- 实现了旋转轨道扭矩的门诱导的开启-关闭可切换性.
- 与正场相比,在强大的负门电场下,证明了缓冲式旋转轨道扭矩的六倍增强.
- 通过自旋-电荷相互转换的变化来解释门调制.
结论:
- 该研究成功地证明了Pt/Co/Pt装置中的电气可控制的旋转轨道扭矩.
- 旋转轨道扭矩的门调制归因于电场诱导的旋转电荷相互转换的变化.
- 这项研究为开发电可编程自旋电子设备提供了一个有前途的途径.
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