RII Track-4:NSF: Coupling Magnetism and Photoluminescence in New Lanthanide Materials

RII Track-4：NSF：新型稀土材料中的磁性与光致发光耦合

• 批准号: 2227933
• 负责人: Thao Tran
• 金额: $ 20.06万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-01-01 至 2024-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2227933&HistoricalAwards=false
• 关键词: RII; Track; NSF; Coupling; Magnetism

The development of new materials with unique properties is the foundation for new energy and information technologies. Despite tremendous progress in developing such materials, scientists still seek to understand how the fundamental physical properties are governed by the chemistry of multifunctional materials. This project aims to establish a strong research program in advanced materials design and development at Clemson University (CU) with the goal of addressing these fundamental challenges to create novel systems with multiple functionalities. The project will design, synthesize, and characterize new materials to develop deeper understanding of how the fundamentals such as chemical composition, atomic structure, and bonding determine optical and magnetic properties. This work will be performed in partnership with researchers at Oak Ridge National Laboratory (ORNL) – a world-class neutron facility. The extensive collaboration between CU and ORNL will advance frontier, transdisciplinary study of multifunctional systems in physics and chemistry while educating undergraduate and graduate students about the connection between the science and practice of advanced materials research. This Research Infrastructure Improvement Track-4 EPSCoR Research Fellows (RII Track-4) project would provide a fellowship to an Assistant professor and training for a graduate student at the Clemson University. This work would be conducted in collaboration with researchers at the Oak Ridge National Laboratory (ORNL). Optically addressable lanthanide magnets are at the forefront of new technological advances in quantum information science and spintronics. While impressive achievements have been made in the study of lanthanide (Ln) single molecular magnets, a significant challenge awaits as to how luminescence and magnetism can be harmonized in extended solid Ln materials. The goal of this EPSCoR project is to provide a reliable set of fundamental chemistry–function guidelines in new Ln3+ materials, resulting in optimal electron–phonon interactions, spin states, and coupled degrees of freedom favorable to the co-existence of luminescence and magnetism in a single system. The proposed research adopts a combined experimental approach using state-of-the-art synthetic techniques, photoluminescent and magnetic properties measurements, X-ray diffraction, and neutron scattering. This project will enable the PI to develop a long-term collaboration between CU and ORNL, which in turn will enhance the cross-disciplinary research activities, expertise, and education for the PI’s research team and CU, and thus facilitate the scientific advancement, workforce development, and economic growth in South Carolina.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.

具有独特特性的新材料的开发是新能源和信息技术的基础。尽管在开发此类材料方面取得了巨大进展，但科学家仍然试图了解基本物理特性如何受多功能材料的化学影响。该项目旨在在克莱姆森大学（CU）建立一项强大的高级材料设计和开发研究计划，目的是应对这些基本挑战，以创建具有多种功能的新型系统。该项目将设计，合成和表征新材料，以更深入地了解化学组成，原子结构以及键合等基础知识如何确定光学和磁性。这项工作将与橡树岭国家实验室（ORNL）的研究人员合作进行，这是世界一流的中子设施。 CU和ORNL之间的广泛合作将促进前沿，对物理和化学多功能系统的跨学科研究，同时教育本科生和研究生有关高级材料研究的科学与实践之间的联系。这项研究基础设施改进Track-4 Epscor Research Fellows（RII Track-4）项目将为克莱姆森大学的一名研究生提供助理教授和培训奖学金。这项工作将与橡树岭国家实验室（ORNL）的研究人员合作进行。量子信息科学和旋转技术的新技术进步的最前沿。虽然在研究灯笼（LN）单分子磁铁的研究中取得了令人印象深刻的成就，但在扩展的实心LN材料中如何协调发光和磁性的重大挑战。该EPSCOR项目的目的是在新的LN3+材料中提供一组可靠的基本化学 - 功能指南，从而导致最佳的电子 - phonon相互作用，自旋状态和自由度的耦合程度，这有利于单个系统中的发光和磁性共存。提出的研究使用最先进的合成技术，光致发光和磁性特性测量，X射线衍射和中子散射适应了合并的实验方法。 This project will enable the PI to develop a long-term collaboration between CU and ORNL, which in turn will enhance the cross-disciplinary research activities, expertise, and education for the PI’s research team and CU, and thus facilitate the scientific advancement, workforce development, and economic growth in South Carolina.This award reflects NSF's statutory mission and has been deemed precious of support through evaluation using the Foundation's intellectual merit and broader impacts审查标准。

项目成果

Design Principles for Noncentrosymmetric Materials

• DOI: 10.1146/annurev-matsci-080921-110002
• 发表时间: 2023-07
• 期刊: Annual Review of Materials Research
• 影响因子: 9.7
• 作者: Xu Huai;T. Tran