MRI: Track 2 Acquisition of Pulsed 9/34 GHz EPR Spectrometer for Quantum Science and Biochemical Research

MRI：轨道 2 采购用于量子科学和生化研究的脉冲 9/34 GHz EPR 光谱仪

• 批准号: 2320338
• 负责人: Stephen Hill
• 金额: $ 214.47万
• 依托单位: Florida State 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: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2320338&HistoricalAwards=false
• 关键词: MRI; Track; Acquisition; Pulsed; 34

This award is jointly funded by the Chemical Instrumentation (CRIF) program and the Major Research Instrumentation (MRI) program. Professor Stephen Hill from Florida State University and colleagues Geoffrey Strouse and Wen Zhu, together with NHMFL Research Faculty Thierry Dubroca and Tomas Orlando are acquiring a state-of-the-art pulsed electron paramagnetic resonance (EPR) spectrometer operating at frequencies of 9 and 34 gigahertz, in magnetic fields up to 1.5 tesla. This spectrometer is used in various fields including chemistry, biology, and physics. The spectrometer allows observation of transitions when electrons in a magnet field are irradiated with microwaves. The spectrum obtained gives valuable information about the composition of a sample. This information provides insight on the environment near the atom and the properties of the system. As such, the instrumentation is used to provide precise structural details of chemically and biologically important molecules on length scales not possible with nuclear magnetic resonance, including bond distances and angles, as well as accurate information about the spatial arrangements of molecules relative to neighboring ones. In addition, it is used to determine the dynamical properties of magnetic electrons that are central to modern information technologies, including quantum sensing and computing. The instrumentation impacts research in wide ranging areas including biochemistry, organic and inorganic chemistry, catalysis, materials chemistry and physics, as well as the growing area of quantum information science. The instrument is an integral part of teaching as well as research and research training of undergraduate and graduate students in chemistry, biochemistry and physics at both FSU and the National High Magnetic Field Laboratory (NHMFL) . The reach of the instrumentation extends to similar programs at the nearby campuses of Florida Agricultural and Mechanical University, an historically black university, and the University of Florida. Integration of the instrument with the NHMFL user programs also impacts the work of researchers and students throughout the US and beyond, including the many participants of schools and workshops organized by the lab.The award is aimed at enhancing research and education at all levels. Research enabled by the instrument is focused on the following areas of study: (i) obtaining fundamental understanding of the microscopic processes that limit the coherence of molecular spin qubits, with the aim of designing molecules with built-in protection against various sources of decoherence; (ii) linking molecular qubits to form elementary quantum gates; (iii) development of electrical and optical schemes for initialization and manipulation of spin qubits that are essential for next generation quantum technologies; (iv) seeking understanding of the intrinsic electronic structures and the role of extrinsic defects in dilute magnetic semiconductor quantum dots, with a view to optimizing plasmonic and spintronics properties of importance to future microelectronics applications; (v) understanding peptide biosynthesis for design of next-generation “evolution-proof” antibiotics and green catalysts; and (vi) development of new dynamic nuclear polarization agents with properties that optimize nuclear magnetic resonance signal enhancements, thereby greatly increasing the sensitivity of this widely applied technique.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.

该奖项由佛罗里达州立大学化学仪器 (CRIF) 项目和主要研究仪器 (MRI) 项目的 Stephen Hill 教授及其同事 Geoffrey Strouse 和 Wen Zhu 以及 NHMFL 研究人员 Thierry Dubroca 和 Tomas Orlando 共同资助。最先进的脉冲电子顺磁共振 (EPR) 波谱仪，工作频率为 9 和 34 GHz，磁场高达 1.5 特斯拉。光谱仪用于化学、生物学和物理学等各个领域。光谱仪可以观察磁场中的电子受到微波照射时的转变，获得的光谱可以提供有关样品成分的有价值的信息。因此，该仪器用于提供核磁共振无法实现的化学和生物学重要分子的精确结构细节，包括键距和角度，以及准确的信息。关于此外，它还用于确定磁性电子的动态特性，这些特性是现代信息技术的核心，包括量子传感和计算，该仪器影响着生物化学、有机等广泛领域的研究。该仪器是化学、生物化学和物理学本科生和研究生教学以及研究培训的重要组成部分。在 FSU 和国家高磁场实验室 (NHMFL)。该仪器的覆盖范围扩展到了佛罗里达农业机械大学（一所历史悠久的黑人大学）附近的类似项目，并且该仪器与 NHMFL 用户项目的集成也产生了影响。美国及其他地区的研究人员和学生的工作，包括实验室组织的学校和研讨会的许多参与者。该奖项旨在加强各个层面的研究和教育，该仪器的研究重点关注以下领域：研究：（一）获得对限制分子自旋量子位相干性的微观过程的基本了解，目的是设计具有针对各种退相干源的内置保护的分子；(ii) 连接分子量子位以形成基本量子门；用于初始化和操纵自旋量子位的电学和光学方案，这对于下一代量子技术至关重要；（iv）寻求对稀磁半导体量子点中的内在电子结构和外在缺陷的作用的理解；着眼于优化对未来微电子应用至关重要的等离子体和自旋电子学特性；(v) 了解肽生物合成，以设计下一代“防进化”抗生素和绿色催化剂；(vi) 开发具有特性的新型动态核极化剂；优化核磁共振信号增强，从而大大提高这种广泛应用技术的灵敏度。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。