磁化切换过程的非挥发性电调制在有图案的薄膜中
Hao Zhou1,2, Zhe Zhang1,2, XingYu Hou1,2
1Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.
Small (Weinheim an der Bergstrasse, Germany)
|February 10, 2026
概括
制造结构显著影响氧化 (SrRuO3) 薄膜中的磁化切换. 几何效应和电偏差使得用于高级内存应用的电压控制磁开关成为可能.
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:
- 磁化开关对于高密度,超快速,非挥发性自旋电子设备至关重要.
- 之前的研究集中在界面或厚度效应上,使得制造结构的影响未得到充分研究.
研究的目的:
- 研究在有图案的氧化 (SRO) 薄膜中对磁传输的几何和边界效应.
- 在多铁SRO薄膜中探索磁化的非挥发性电调制.
主要方法:
- 先进的微/纳米级加工,用于制造有图案的SRO薄膜.
- 微磁模拟用于验证实验观察结果.
- 电气测量磁阻 (MR) 和强制场调制.
主要成果:
- 将通道缩小到1微米,使和场从9增加到32.5kOe.
- 边缘磁性异质性诱导的多步磁化切换.
- 在2.6纳米的SRO膜中观察到电压控制的磁切换,改变强制场±9V.
结论:
- 几何和边界效应显著影响SRO片中的磁化切换.
- 磁化的电调制可以在多铁体SRO中实现,由铁电极化和反铁磁性驱动.
- 这种电压控制的切换机制对多态记忆和人工突触有希望.
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