CAREER: First-Principles Discovery of Optically Excited States in Van der Waals Magnetic Structures

职业生涯：范德华磁结构中光激发态的第一原理发现

• 批准号: 2339995
• 负责人: Ting Cao
• 金额: $ 59.88万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-02-01 至 2029-01-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2339995&HistoricalAwards=false
• 关键词: CAREER; First; Principles; Discovery; Optically; CAREER; First; Principles; Discovery; Optically

NONTECHNICAL SUMMARYThis award supports research and educational activitives aimed at understanding the quantum behavior of a class of magnetic materials known as van der Waals (vdW) magnets. These magnets display various types of magnetic ordering when they are thinned to one layer or very few sheets of material. Because of their unique responses to illumination by light, these materials are currently one of the frontiers of materials research. The PI and his team will develop new computational methods and apply them to understand light-matter interactions in vdW magnets directly from fundamental quantum laws, without relying on empirical parameters. This approach enables comprehensive understanding of various aspects of vdW magnets upon optical excitations, such as magnetic control of optical properties. Such fundamental understanding and prediction of material response are crucial for advancing technologies like optoelectronics, energy harvesting, and quantum information science.The project also includes significant educational components. It will provide training for students and professionals in physics, materials science, and quantum technology. Through initiatives like “STEM-pals” and “Data Science for Future Materials Science Workforce,” the project will educate K-12 students and enhance undergraduate and graduate curricula in these fields. These educational efforts are particularly focused on engaging underrepresented groups, promoting diversity in science and technology, and preparing the next generation of innovators.TECHNICAL SUMMARYThis award supports theoretical and computational research and education that focus on advancing the understanding of light-matter interactions in van der Waals (vdW) magnets. The project seeks to achieve a fundamental understanding of many-body effects in optically excited states of vdW magnetic structures, aiming to control optical responses and design light-quantum excitation couplings in solids. The research encompasses three main thrusts: 1. Magnetic engineering of excitonic structures and electromagnetically induced transparency in vdW magnets. 2. Exploration of unique optical excitations in moiré superlattices and the development of novel computational methods tailored for these materials. 3. Investigation into exciton-magnon coupling, offering potential applications in quantum information science.The project also includes a significant educational component. It will provide training for undergraduate and graduate students in physics, materials science, and quantum technology. Through initiatives like “STEM-pals” and “Data Science for Future Materials Science Workforce,” the project will educate K-12 students and enhance undergraduate and graduate curricula in these fields. These educational efforts are particularly focused on engaging underrepresented groups, promoting diversity in science and technology, and preparing the next generation of innovators.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术摘要这一奖项支持研究和教育活跃者，旨在了解一类称为范德华（VDW）磁铁的磁性材料的量子行为。这些磁铁将其变薄成一层或极少量材料时，它们显示出各种类型的磁性排序。由于它们对光线照明的独特反应，这些材料目前是材料研究的前沿之一。 PI和他的团队将开发新的计算方法，并将其应用它们直接从基本量子定律中理解VDW磁铁中的光线相互作用，而无需依赖经验参数。这种方法可以在光学兴奋（例如光学特性的磁控制）下对VDW磁铁的各个方面进行全面了解。对材料响应的基本理解和预测对于推进光电，能量收集和量子信息科学等技术至关重要。该项目还包括重要的教育组成部分。它将为物理，材料科学和量子技术领域的学生和专业人员提供培训。通过诸如“ STEM-PAL”和“未来材料科学劳动力的数据科学”之类的举措，该项目将教育K-12学生，并在这些领域增强本科和研究生课程。这些教育努力尤其集中在参与代表性不足的群体，促进科学和技术方面的多样性，并准备下一代创新者。技术摘要这一奖项支持理论和计算研究和教育，这些奖项专注于促进对Van deraals（VDW）磁铁中光明相互作用的理解。该项目旨在在VDW磁性结构的光学激发状态下对多体效应进行基本理解，旨在控制光学响应并设计固体中的浅量器激动人心的耦合。该研究包括三个主要推力：1。令人兴奋的结构的磁性工程和VDW磁铁中电磁诱导的透明度。 2。探索Moiré超级晶格中独特的光学令人兴奋的探索以及针对这些材料量身定制的新型计算方法的开发。 3。调查令人兴奋的杂种耦合，为量子信息科学提供潜在的应用。该项目还包括一个重要的教育组成部分。它将为物理，材料科学和量子技术的本科生和研究生提供培训。通过诸如“ STEM-PAL”和“未来材料科学劳动力的数据科学”之类的举措，该项目将教育K-12学生，并在这些领域增强本科和研究生货币。这些教育努力尤其集中在参与代表性不足的群体，促进科学和技术方面的多样性，并准备下一代创新者。该奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子的智力优点和更广泛的影响来通过评估来获得的支持。