Acquisition of the EMX-plus EPR Spectrometer

购买 EMX-plus EPR 光谱仪

• 批准号: 2215713
• 负责人: Natalia Noginova
• 金额: $ 25.05万
• 依托单位: Norfolk State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2215713&HistoricalAwards=false
• 关键词: Acquisition; EMX; plus; EPR; Spectrometer

Non-technical summaryScientists at Norfolk State University (NSU) work on developing novel materials and nanostructures where quantum physics plays a significant role producing unusual magnetic, electric, and optical properties not found in common materials. These unique properties are related to the quantum behavior of electrons and interactions between them at the atomic scale. This Major Research Instrumentation (MRI) award will purchase an electron spin resonance spectrometer, which allows one to get information on individual unpaired electrons and electron assemblies, characterize magnetic properties of materials, and explore possibilities for manipulation of electrons with light. The materials and systems that are being developed can revolutionize future technology, contribute to energy technology with new photosensitive materials, and accelerate Information processing to optical speeds of operation (orders of magnitude faster than now). In addition, the electron spin resonance instrumentation is important for the education and training of graduate and undergraduate students from underrepresented minority groups (many of whom are first-generation college or graduate students) by involving them in cutting-edge research and providing hands-on experience on advanced scientific equipment. Furthermore, the instrument serves as a multi-user facility supporting STEM research at NSU and other local schools. Technical summaryElectron magnetic resonance methods provide an important information on unpaired electron spins, their interactions and dynamics, and allow one to characterize magnetic phases of magnetic materials, and the presence of defects and valence states of impurities in diamagnetic systems. The new EMXplus EPR Spectrometer is a vital characterization equipment for materials science and is involved in several research directions in the Center for Materials Research of Norfolk State University, which include: (i) quantum materials, which demonstrate unusual magnetism and interplay between magnetic and charge transport degrees of freedom associated with chiral topology; (ii) nanostructured systems with coupling of plasmonic, magnetic and electric effects; (iii) transition from quantum to classical behavior in supermaramagnetic nanoparticles; and (iv) effects of light illumination and spin-dependent transport in organic systems. The instrumentation will serve as a multi-user facility, and also enrich education, providing hands-on experience in training of graduate and undergraduate students from underrepresented minority groups at Norfolk State University, one of the largest HBCUs in the nation, and partner HBCU institutions (Elizabeth City State University and Virginia State University).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.

诺福克州立大学（NSU）的科学家们致力于开发新材料和纳米结构，其中量子物理学发挥着重要作用，产生了普通材料中没有的不寻常的磁、电和光学特性。这些独特的性质与电子的量子行为以及它们之间在原子尺度上的相互作用有关。该重大研究仪器（MRI）奖将购买电子自旋共振光谱仪，该光谱仪允许人们获得有关单个未成对电子和电子组件的信息，表征材料的磁性，并探索用光操纵电子的可能性。正在开发的材料和系统可以彻底改变未来的技术，通过新的光敏材料为能源技术做出贡献，并将信息处理加速到光学操作速度（比现在快几个数量级）。 此外，电子自旋共振仪器对于教育和培训来自代表性不足的少数群体的研究生和本科生（其中许多人是第一代大学生或研究生）非常重要，可以让他们参与尖端研究，并提供先进科学设备的实践经验。此外，该仪器还作为多用户设施，支持NSU和其他当地学校的STEM研究。电子磁共振方法提供了关于未成对电子自旋、它们的相互作用和动力学的重要信息，并且允许人们表征磁性材料的磁相以及抗磁性系统中杂质的缺陷和价态的存在。新的EMXplus EPR光谱仪是材料科学的重要表征设备，并参与诺福克州立大学材料研究中心的几个研究方向，其中包括：（i）量子材料，其表现出不寻常的磁性以及与手性拓扑相关的磁性和电荷传输自由度之间的相互作用;（ii）具有等离子体、磁和电效应耦合的纳米结构系统;（iii）超磁性纳米颗粒中从量子到经典行为的转变;以及（iv）有机系统中光照射和自旋相关输运的效应。该仪器将作为一个多用户设施，也丰富了教育，提供实践经验，在培训研究生和本科生从代表性不足的少数群体在诺福克州立大学，在全国最大的HBCU之一，和HBCU合作机构（伊丽莎白城州立大学和弗吉尼亚州立大学）该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。