Magnetic van der Waals Heterostructures

无机范德华半导体（vdW）由于其独特的特性，包括谷电子学、拓扑超导性和自旋霍尔效应，在过去的十年中引起了极大的关注。这些材料被组织在原子层中，层内具有强相互作用，层之间具有弱vdW力，因此可以隔离单个原子或分子层。此外，可以通过不同层的堆叠形成异质结构（HSs）来设计具有各种性能的新材料。这些高速钢具有无缝的层间接触，尖锐和局部的电子势，低应变和层间力，以及堆叠注册的角度自由度。层间的角度失配旋转可以产生具有大单元格的莫尔维尔晶格，其电子和光学性质与组成层不同。我们建议研究由新型磁性二维材料形成的hs的性质及其提供的新物理现象，这些现象具有变革性影响的潜力。提出的工作将研究具有谷极化过渡金属二硫族化合物或/和二维超导体的二维反铁磁（AFM）半导体的hs。我们的目标是通过调整层间相互作用的强度和性质来控制高温超导的性能，这些相互作用是由层间的旋转取向、层间电荷转移和层间电子特性引起的。该研究将涉及最前沿的光学、磁光和电学实验技术，以及支持理论范式的发展，旨在了解磁性hs的复杂界面。最终，积累的二维hs知识将用于展示新型量子电子器件的工作范式。该工作计划旨在利用多学科团队的协同作用和小组之间的密切合作。

Inorganic van der Waals (vdW) semiconductors have attracted a tremendous attention in the last dec-ade due to their unique properties, including valley electronics, topological superconductivity and spin Hall effect. These materials are organized in atomistic layers with strong interactions within the layers and weak vdW forces between layers, hence enabling the isolation of single atomic or molecular layers. Furthermore, new materials with various properties can be engineered by the formation of heterostruc-tures (HSs) by stacking of dissimilar layers. These HSs feature seamless interlayer contact, sharp and localized electronic potential, low strain and interlayer forces, and an angular degree of freedom in stacking registry. An angular misfit rotation between layers can results in a moiré lattice with a large unit cell, and electronic and optical properties different from the constituent layers. We propose to investigate the nature of HSs formed from novel magnetic 2D materials and the new physical phenomena they offer, bearing the potential of a transformative impact. The proposed work will investigate HSs of 2D antiferromagnetic (AFM) semiconductors with valley-polarized transition metal dichalcogenides or/and 2D superconductors. We aim to control the HSs properties by tuning the strength and nature of interlayer interactions, as resulted by rotational alignment, interlayer charge transfer and electronic characteristic of the layers. The proposed research will involve cutting edge optical, magneto-optical and electrical experimental techniques along with the development of supporting theoretical paradigms, aimed at understanding the complex interfaces of magnetic HSs. Ultimately, the accumulated knowledge on 2D HSs will be har-nessed towards demonstrating a working paradigm of novel quantum electronic device. The work plan designed to take advantage of the synergetic multidisciplinary team and the close cooperation between groups.