通过在门电压下的气和氧气迁移来控制 CoGd 膜中的补偿温度
Xue Ren1, Liang Liu1, Bin Cui1
1School of Physics, State Key Laboratory for Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.
Nano letters
|June 22, 2023
概括
离子液体门电气控制 CoGd 异构体中的磁性,使得电压诱导的磁化切换和磁性补偿温度的大变化.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 材料科学 材料科学
- 这就是Spintronics.
背景情况:
- 对磁性的电气控制是节能自旋电子设备的关键.
- 铁磁材料,如-加多 (CoGd) 提供可调节的磁性.
研究的目的:
- 通过使用离子液门,研究Cogd异构结构中磁性属性的电控制.
- 探索门电压对磁性补偿温度和磁化开关的影响.
主要方法:
- 制造/-加多/ (Pt/CoGd/Pt) 的异构结构.
- 离子液体封闭的应用,以诱导磁性特性的电调制.
- 实验测量和理论计算来分析磁性行为.
主要成果:
- 门电压显著改变了CoGd的磁性,导致磁补偿温度变化>200K.
- 通过控制主导磁子网格来证明电压诱导的磁化切换.
- 确定了离子迁移 (H+和O2-) 作为调节Co和Gd磁矩的机制.
结论:
- 离子液体封锁提供了一种强大的方法,用于在CoGd.中完全电气和可逆控制磁化.
- 这些发现为先进的自旋电子记忆和逻辑应用铺平了道路.
- 该研究强调了电场效应在操纵磁补偿温度方面的潜力.
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