在二维网格中的布洛克型磁性 skyrmions
Wenhui Du1, Kaiying Dou1, Zhonglin He1
1School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandanan Street 27, Jinan 250100, China. daiy60@sina.com.
Materials horizons
|September 5, 2023
概括
研究人员在2D材料中发现了新的Bloch型磁性 skyrmions,例如MnInP2Te6.6. 这一发现扩大了对磁性 skyrmions 的理解,超越了传统的 Néel 类型和反skyrmions.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 是一种材料科学.
- 这就是Spintronics.
背景情况:
- 磁性 skyrmions 对于下一代电子设备至关重要.
- 研究主要集中在2D网格中的Néel型和antiskyrmions.
- 在二维材料中,布洛赫型磁性 skyrmions 仍然未被充分探索.
研究的目的:
- 在2D材料中发现和描述新的磁性型.
- 为了研究推动布洛赫型 skyrmions 的形成的基本机制.
- 探索基于skyrmion技术的新材料的潜力.
主要方法:
- 第一个原则计算以建模材料属性.
- 蒙特卡洛模拟用于预测磁性行为.
- 对称性分析以了解拓保护.
主要成果:
- 在MnInP2Te6.6的2D网格中发现布洛赫型磁性 skyrmions.
- 在MnTlP2Te6.6中识别布洛赫型磁性双边子.
- 斯基尔米翁的形成是由被打破的反向对称,旋转轨道合和Dzyaloshinskii-Moriya相互作用驱动的,即使没有外部磁场,也会发生这种相互作用.
- 布洛赫类型的斯基米翁受到D3对称的保护.
结论:
- 这项工作在2D网格中引入了布洛赫型磁性 skyrmions,扩大了 skyrmion研究的范围.
- 这些发现为使用布洛赫型 skyrmions 的新型 spintronic 应用铺平了道路.
- 这些已识别的材料为探索拓磁性提供了新的平台.
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