铁电调节的磁性 skyrmions 在二维的多铁体中
Zhonglin He1, Wenhui Du1, Kaiying Dou1
1School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandanan Street 27, Jinan 250100, China. daiy60@sina.com.
Materials horizons
|June 22, 2023
概括
研究人员在二维多铁体中发现了新的拓磁性,使得可以创建小型磁性 skyrmions. 它们的奇拉性可以通过铁电调节,为先进的自旋电子设备铺平了道路.
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
- 纳米技术纳米技术
背景情况:
- 磁是拓保护的结构,对于先进的信息技术至关重要.
- 控制skyrmion属性仍然是开发实用的skyrmionic设备的一个关键挑战.
研究的目的:
- 为了确定新的二维 (2D) 多铁材料用于斯基米安稳定.
- 为了研究磁性 skyrmion 属性的铁电控制及其动态.
主要方法:
- 第一原则计算.第一原则计算.
- 蒙特卡洛的模拟.
- 对磁电合效应的分析.
主要成果:
- 在2D多铁子Co2NF2.2.中识别了非平凡的拓磁性.
- 使用大型Dzyaloshinskii-Moriya和交换相互作用稳定了10nm以下的磁性 skyrmions.
- 通过与MoSe2.2的接口证明了 skyrmion 性和可控制的 skyrmion 创建/消灭的铁电调性.
结论:
- 单层Co2NF2是2D skyrmionics的一个有希望的材料,因为它有很大的Dzyaloshinskii-Moriya相互作用和铁电调性.
- 磁电合为精确控制斯基米安状态和过渡提供了一条途径.
- 提出了一个新的标准 (κ') 稳定磁性 skyrmions 在多铁子网,推进 2D skyrmionics 和多铁子的领域.
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