在All-van der Waals分层层异构结构的接口上,近距离诱导的可调节磁顺序
Eun-Mi Choi1,2, Taesoo Kim1,2,3, Byeong Wook Cho1,2,3
1Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea.
ACS nano
|July 31, 2023
概括
范德瓦尔斯异构结构中的旋转轨道合 (SOC) 控制着磁性排序. 这项研究表明,通过SOC的接口工程 - - 近距离效应可以实现新型自旋电子设备的功能.
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:
- 旋转轨道合 (SOC) 对于旋转电荷转换,旋转扭矩和磁现象至关重要.
- 了解SOC对异构结构中铁磁性的影响,是先进的自旋电子学的关键.
研究的目的:
- 研究Fe3GeTe2/W1-xVxSe2异构结构中SOC和铁磁之间的相互作用.
- 证明 SOC 接近效应对界面上的磁性排序的影响.
- 探索针对接口量身定制的自旋电子设备的潜力.
主要方法:
- 所有范德瓦尔斯异构结构 (Fe3GeTe2/W1-xVxSe2) 的制造.
- SOC强度通过兴奋剂的系统变化 (x = 0和0.05).
- 在异构结构接口上的磁性排序和切换现象的表征.
主要成果:
- 观察到由不同SOC强度引起的各种磁顺序 (旋转,旋转,反向磁化).
- 在FGT/W0.95V0.05Se2中显示出强烈的反铁磁转换到铁磁,表明合成反铁磁.
- 突出了SOC近距离效应在确定界面磁性质方面的重要作用.
结论:
- 通过范德瓦尔斯异构结构中的SOC近距离效应进行接口工程,可以提供可调节的磁性特性.
- 这种方法使下一代自旋电子设备的开发成为可能,例如2D MRAM转换开关.
- 研究结果为设计新型自旋电子应用提供了基本的见解.
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