当前位置：
X-MOL 学术
›
Adv. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Proximity-Coupling-Induced Significant Enhancement of Coercive Field and Curie Temperature in 2D van der Waals Heterostructures.
Advanced Materials ( IF 27.4 ) Pub Date : 2020-08-16 , DOI: 10.1002/adma.202002032 Luman Zhang 1 , Xinyu Huang 2 , Hongwei Dai 1 , Mingshan Wang 1 , Hui Cheng 1 , Lei Tong 2 , Zheng Li 2 , Xiaotao Han 1 , Xia Wang 3 , Lei Ye 2 , Junbo Han 1
Advanced Materials ( IF 27.4 ) Pub Date : 2020-08-16 , DOI: 10.1002/adma.202002032 Luman Zhang 1 , Xinyu Huang 2 , Hongwei Dai 1 , Mingshan Wang 1 , Hui Cheng 1 , Lei Tong 2 , Zheng Li 2 , Xiaotao Han 1 , Xia Wang 3 , Lei Ye 2 , Junbo Han 1
Affiliation
|
Magnetism in 2D has long been the focus of condensed matter physics due to its important applications in spintronic devices. A particularly promising aspect of 2D magnetism is the ability to fabricate 2D heterostructures with engineered optical, electrical, and quantum properties. Recently, the discovery of intrinsic ferromagnetisms in atomic thick materials has provided a new platform for investigations of fundamental magnetic physics. In contrast to 2D CrI3 and Cr2Ge2Te6 insulators, itinerant ferromagnetic Fe3GeTe2 (FGT), which has a larger intrinsic perpendicular anisotropy, higher Curie temperature (TC), and relatively better stability, is a promising candidate for achieving permanent room‐temperature ferromagnetism through interface or component engineering. Here, it is shown that the ferromagnetic properties of FGT thin flakes can be modulated through coupling with a FePS3. The magneto‐optical Kerr effect results show that the TC of FGT is improved by more than 30 K and that the coercive field is increased by ≈100% due to the proximity coupling effect, which changes the spin textures of FGT at the interface. This work reveals that antiferromagnet/ferromagnet coupling is a promising way to engineer the magnetic properties of itinerant 2D ferromagnets, which paves the way for applications in advanced magnetic spintronic and memory devices.
中文翻译：
在二维范德华异质结构中，邻近耦合引起的矫顽场和居里温度显着提高。
由于2D磁性在自旋电子设备中的重要应用，长期以来一直是凝聚态物理的重点。2D磁性的一个特别有希望的方面是制造具有工程光学，电学和量子性质的2D异质结构的能力。最近，原子厚材料中固有铁磁性的发现为基础磁性物理学的研究提供了新的平台。与2D CrI 3和Cr 2 Ge 2 Te 6绝缘子相比，流动铁磁性Fe 3 GeTe 2（FGT）具有更大的固有垂直各向异性，居里温度（T C）和相对更好的稳定性，是通过界面或组件工程实现永久性室温铁磁性的有希望的候选者。在此表明，可以通过与FePS 3耦合来调节FGT薄片的铁磁性能。磁光克尔效应结果表明，由于邻近耦合效应，FGT的T C改善了30 K以上，矫顽场增加了约100％，这改变了FGT在界面处的自旋织构。这项工作表明，反铁磁体/铁磁体耦合是一种设计迭代2D铁磁体的磁性能的有前途的方法，这为高级磁性自旋电子器件和存储设备的应用铺平了道路。
更新日期：2020-09-21
中文翻译：
在二维范德华异质结构中，邻近耦合引起的矫顽场和居里温度显着提高。
由于2D磁性在自旋电子设备中的重要应用，长期以来一直是凝聚态物理的重点。2D磁性的一个特别有希望的方面是制造具有工程光学，电学和量子性质的2D异质结构的能力。最近，原子厚材料中固有铁磁性的发现为基础磁性物理学的研究提供了新的平台。与2D CrI 3和Cr 2 Ge 2 Te 6绝缘子相比，流动铁磁性Fe 3 GeTe 2（FGT）具有更大的固有垂直各向异性，居里温度（T C）和相对更好的稳定性，是通过界面或组件工程实现永久性室温铁磁性的有希望的候选者。在此表明，可以通过与FePS 3耦合来调节FGT薄片的铁磁性能。磁光克尔效应结果表明，由于邻近耦合效应，FGT的T C改善了30 K以上，矫顽场增加了约100％，这改变了FGT在界面处的自旋织构。这项工作表明，反铁磁体/铁磁体耦合是一种设计迭代2D铁磁体的磁性能的有前途的方法，这为高级磁性自旋电子器件和存储设备的应用铺平了道路。
京公网安备 11010802027423号