在石墨烯/Fe3GeTe2中的不寻常的Dzyaloshinskii-Moriya相互作用 范德瓦尔斯异构结构
Pawan Kumar Srivastava1, Yasir Hassan2, Seungjun Lee3
1School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea.
Small (Weinheim an der Bergstrasse, Germany)
|June 20, 2024
概括
兹亚洛辛斯基-莫里亚相互作用 (DMI) 在石墨烯/Fe3Ge2异构结构中诱导了性旋转纹理. 这一突破稳定了拓旋转,为先进的基于 skyrmion 的旋转器件铺平了道路.
科学领域:
- 这就是Spintronics.
- 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
背景情况:
- 兹亚洛辛斯基-莫里亚相互作用 (DMI) 对于旋转器件中性旋转纹理至关重要.
- 石墨烯是范德瓦尔斯自旋电子装置的一个有前途的材料.
- 在与3D铁磁体合的石墨烯中诱导DMI是具有挑战性的,因为自旋轨道相互作用较低.
研究的目的:
- 为了证明在石墨烯/Fe3Ge2异构结构中诱导显著的DMI.
- 为了研究拓旋转和奇拉旋转纹理的稳定性.
- 探索基于skyrmion接口驱动的设备的潜力.
主要方法:
- 石墨烯/Fe3Ge2异构结构的制造.
- 界面电场和被打破的反转对称性的实验性表征.
- 测量Rashba类型的旋转分裂和DMI能量.
- 分析拓的霍尔效应和费米液体行为.
主要成果:
- 在石墨烯/Fe3Ge2.2中引发了相当大的Rashba型旋转分裂和显著的DMI.
- 界面电场和被打破的反向对称被确定为关键因素.
- 增强的DMI稳定了低于基里温度的非线性旋转.
- 拓霍尔效应证实了旋转和非微不足道的拓之间的相互作用.
结论:
- 接口工程可以克服在基于石墨烯的自旋电子学中诱导DMI的挑战.
- 这些发现支持拓线和奇拉纹理的稳定.
- 这项工作为设计和控制接口驱动的 skyrmion 设备提供了一条途径.
关键词:
季亚洛辛斯基-莫里亚互动互动Fe3GeTe2Fe2Fe2Fe2Fe2Fe2Fe2Fe3GeTe2Fe2Fe2Fe3Fe2Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe3Fe3Fe2Fe2Fe3Fe2Fe3Fe2Fe3Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe2Fe3Fe3Fe2Fe3拉什巴 (Rashba) 效应是造成的.磁性异构的能量能量是磁性异构的能量.非费尔米液体的非费尔米液体在拓学方面,霍尔效应是霍尔效应.更多相关视频
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