Studies of novel two-dimensional materials systems grown by molecular beam epitaxy

在过去的几十年里，对具有新功能的新材料和器件的研究一直在支持加拿大的快速经济增长和半导体等行业的技术创新。二维(2D)晶体材料提供了广阔的舞台，界面效应和纳米尺度的限制经常导致其电子和磁性基态的实质性改变。这些2D材料的显著例子包括石墨烯和过渡金属硫化物(TMC)，如拓扑绝缘体Bi2Se3。提出的研究计划利用其2D材料如此高的可调性和其在功能器件方面的巨大潜力，目标是设计、诱导和控制TMC、钙钛矿型氧化物和其他新型2D材料系统中的新状态。实现材料系统，允许实验实现新的特性，并支持下一代电子设备是这项提议的核心。该项目将前所未有地将分子束外延(MBE)合成与纳米结构制备以及广泛的表征技术相结合，以探索和控制新材料的新特性。由于研究基础设施的限制，这种综合研究能力在加拿大其他机构和国际上都是极其罕见的。在UBC，我们的目标是建立一个世界领先的研究计划，使我们能够常规地设计和研究具有新特性形式的纳米结构材料。进行这项研究的主要设备是由氧化物分子束外延、TMC分子束外延和角度分辨光电子能谱(ARPES)组成的集成团簇系统。这一最先进的基础设施将是UBC的第一个此类基础设施，目前世界上只有不到5个，并使我们有独特的能力来扩大研究领域，并帮助加拿大在尖端材料的开发方面处于领先地位。UBC的斯图尔特·布卢森量子物质研究所为研究生和本科生以及博士后研究员提供了一个平台，为凝聚态物理、纳米科学和材料科学领域的令人兴奋的跨学科合作机会提供了平台。通过合作，他们将接触到最先进的基础设施，并进行前沿研究。高素质人员(HQP)不仅将获得作为独立研究人员所需的知识和技能，而且还将更好地了解研究项目如何通过科技创新帮助塑造我们的日常生活。这些素质将为他们在学术界和工业界追求并确保成功的职业生涯做好准备，并具有全球领导力的愿景。

Research on new materials and devices with novel functionalities has been supporting the rapid economic growth of Canada and technological innovations in industries, such as semiconductor, in the last several decades. Two-dimensional (2D) crystal materials present a broad playground, where the interface effects and nanoscale confinements often lead to substantial modifications in their electronic and magnetic ground states. Notable examples of these 2D materials include graphene and transition metal chalcogenides (TMCs) such as topological insulators Bi2Se3. The proposed research program capitalizes on such high tunability of their properties of the 2D materials and their great potential for functional devices, with the goal of designing, inducing, and controlling new states in TMCs, perovskite oxides, and other novel 2D materials systems. Achieving materials systems that permit experimental realization of the emergent properties and support next-generation of electronic devices lies at the heart of this proposal. This program will unprecedentedly integrate molecular beam epitaxy (MBE) synthesis with nanostructure fabrication, and a wide range of characterization techniques to explore and control the emergent properties in new materials. This kind of integrated research capabilities is extremely rare in other institutes in Canada and internationally, due to the limit of research infrastructures. At UBC, we aim to build a world-leading research program that allows us to routinely design and study nanostructured materials with new forms of properties. The main equipment to conduct the proposed research is an integrated cluster system consisting of an oxide MBE, a TMC MBE, and an angel-resolved photoemission spectroscopy (ARPES). This state-of-the-art infrastructure will be the first of such at UBC, with less than five existing over the world, and give us unique capability to expand the research areas and to help Canada to lead in the development of cutting-edge materials.Stewart Blusson Quantum Matter Institute of UBC provides a platform for exciting interdisciplinary collaboration opportunities in condensed matter physics, nanoscience, and materials science for students at both the graduate and undergraduate levels and for post-doctorate fellows. Through the collaborations, they will be exposed to the state-of-the-art infrastructures and conduct forefront research. Highly qualified personnel (HQP) will gain not only the required knowledge and skills as an independent researcher, but also a better understanding of how a research program as such helps to shape our daily life through scientific and technological innovations. These qualities will prepare them to pursue and guarantee them a successful career in academia and in industries, with their leadership vision at a global level.