寻找能够广泛应用到超高速、超高密度、低功耗自旋逻辑器件的二维磁体，是近年来二维材料领域的研究热点。过渡金属铬硫族化合物由于其丰富的电子特性，具有较高的居里温度而备受关注。其中，碲化铬超薄薄膜已展现出优异的铁磁性，亟有可能成为二维磁体研究领域的突破口。在本项目中，我们将利用超高真空分子外延束技术，深入研究非层状材料的二维生长机理，在不同的衬底上实现大面积、高质量、单一结构的磁性碲化铬薄膜的制备。同时，我们将利用各种表面界面分析手段，精准表征碲化铬的晶体结构、电学、磁学等基本物性，并探讨晶体结构、原子缺陷、晶界、掺杂、衬底等对磁性的影响，利用界面间的耦合效应，获得新奇量子现象。我们希望通过本项目研究，在微观和基础层面上加深对二维磁性及其相关表面界面物理现象的理解，促进二维磁性材料与自旋电子器件的发展。

Discovering two-dimensional (2D) magnets is of great significance in the community of 2D materials due to their huge potential in future spintronic logic devices with fast data processing speed, high integration density, and low electric power consumption. Recently, chromium chalcogenides with fascinating electronic and magnetic properties have attracted increasing research interest. Among them, chromium telluride have demonstrated novel ferromagnetic properties and relatively high Curie temperature, which could be a promising candidate for 2D magnets. In this project, we will develop 2D magnets based on chromium telluride by molecular beam epitaxy, and exploit the underlying growth mechanism for such nonlayered materials. After optimizing the growth conditions, we aim to fabricate large-scale 2D chromium telluride films with high quality. With a combination of a variety of surface and interface characterization techniques, we will investigate the crystal structures as well as the electronic and magnetic properties of the chromium telluride ultrathin films. Subsequently, it is highly desired to understand how 2D magnetism determining by crystal structures, atomic defects, grain boundaries, doping, substrates and so on. It will also of great interest to explore novel quantum phenomena via various interfacial coupling. This project will help us to obtain a comprehensive understanding of the 2D magnetism and relevant unique physical phenomena at the surfaces and interfaces, as well as boost the development of 2D magnets and spintronic devices.