Functional Property Correlations in Reduced Dimensions

全球每两年产生的数据比人类历史上产生的数据还要多。全球信息技术产业价值接近5万亿美元，约占总用电量的10%。不断提高信息和通信设备的性能、功能和计算能力的需求，同时降低其能耗，推动了依赖于利用固态材料中的量子力学效应的量子技术的发展。新量子材料的发现和在纳米尺度上控制量子态的新方法是这些新兴技术的核心。我的研究项目的长期目标是了解控制降维固态材料中不同量子力学特性之间相互作用的基本原理，并将这些知识应用于设计和制备新的多功能纳米材料和设备，用于目标技术应用。作为拟议研究计划的一部分，我们将研究新型多功能纳米材料的可调谐光学，电子和磁性之间的相关性，以控制它们的相互作用和相应的量子态。具体的研究目标是研究：(i)新兴等离子体半导体纳米结构中的等离子体激子和激子之间的相互作用，（ii）复合多铁纳米结构中的电极化和磁矩，以及（iii）稀释磁性金属卤化物钙钛矿纳米结构中的自旋和电荷。我们的方法结合了一系列光学和磁光光谱测量，以及自下而上的合成，结构表征和理论模拟，以定量描述复杂多功能纳米结构中的结构-性质和性质-性质相关性。全面理解材料不同量子力学性质之间的耦合仍然是固体化学和物理学中最有趣的问题之一。这项研究的结果有望提供关于这些相互作用的新知识，并可能导致操纵量子态的独特方法，为扩展现有的和基于量子现象制定新技术打开大门。此外，这项研究将使高素质的人才能够发展各种在工业界和学术界都需要的技能。因此，它将使他们为苛刻的就业市场做好准备，有助于加拿大在即将到来的量子革命中处于领先地位。

Every two years more data is generated globally than it has been generated in all of human history. The global information technology industry is approaching $5 trillion in value and accounts for approximately 10 % of the total electricity consumption. Continuing demand to increase the performance, functionality, and computational power of information and communication devices, while decreasing their energy consumption, has fueled the development of quantum technologies which rely on exploiting quantum mechanical effects in solid-state materials. The discoveries of new quantum materials and new ways to control quantum states at the nanoscale are at heart of these emerging technologies. The long-term goals of my research program are to understand fundamental principles governing the interactions between different quantum mechanical properties in solid-state materials of reduced dimensions, and to apply that knowledge to design and prepare new multifunctional nanomaterials and devices for targeted technological applications. As a part of the proposed research program we will investigate the correlations between tunable optical, electronic, and magnetic properties of new multifunctional nanomaterials, with the goal of controlling their interactions and the corresponding quantum states. The specific research objectives are to investigate interactions between: (i) plasmon and exciton in emerging plasmonic semiconductor nanostructures, (ii) electric polarization and magnetic moment in composite multiferroic nanostructures, and (iii) spin and charge in diluted magnetic metal halide perovskite nanostructures. Our methodology combines an array of optical and magneto-optical spectroscopic measurements, together with bottom-up synthesis, structural characterization, and theoretical simulations, to quantitatively describe structure-property and property-property correlations in complex multifunctional nanostructures. Comprehensive understanding of the coupling between different quantum mechanical properties of materials remains one of the most intriguing problems in solid-state chemistry and physics. The results of this research are expected to provide new knowledge about these interactions, and could lead to unique ways of manipulating quantum states, opening the door for expanding the existing and formulating new technologies based on quantum phenomena. Furthermore, this research will enable highly qualified personnel to develop various skills desirable in both industry and academia. As a result, it will prepare them for a demanding job market, contributing to Canada's position as a leader in the upcoming quantum revolution.