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Spectroscopic Studies of Single-Ion Magnets

单离子磁体的光谱研究

基本信息

批准号：
1900296
负责人：
Ziling Xue
金额：
$ 30万
依托单位：
University of Tennessee Knoxville
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-08-01 至 2022-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1900296&HistoricalAwards=false
关键词：
Spectroscopic Studies Single Ion Magnets

项目摘要

In this project, funded by the Chemical Structure, Dynamic & Mechanism B Program of the Chemistry Division, Professor Ziling B Xue of the Department of Chemistry at the University of Tennessee is studying molecular magnets for their potential applications as a new generation of materials for information storage and quantum computation. Such materials could have a much larger storage capacity than the current storage materials with significant energy savings and reduced environmental impacts. The goal of the research is to use spectroscopies to probe properties of molecular magnets to help design better materials in the future. The project is interdisciplinary covering inorganic, physical, and materials chemistries. It will offer graduate and undergraduate students opportunities to conduct research at national laboratories and broaden their educational background and training. Professor Xue plans to attract high school students who are potential first-generation college students from low-income families to sciences.Molecular magnets demonstrate slow magnetic relaxations and quantum tunneling. Some such magnets have been shown to be candidates for chemical qubits. Research efforts have been mostly focused on design and preparation of the magnets with large anisotropies and slow relaxations. However, there has been relatively little understanding of the nature of certain critical properties of the magnets such as spin-lattice interactions, spin-spin interactions, and molecular dynamics. In this project, molecular magnets will be studied by several spectroscopic methods to answer the following questions: (1) Can variable-field and variable-temperature inelastic neutron scattering reveal magnetic transitions and spin-phonon couplings in molecular magnets? (2) Can the intermolecular interactions in the molecular magnets be probed by inelastic neutron scattering? (3) What properties in the molecular magnets can Raman and far-IR spectroscopies reveal? (4) How dynamics in the molecular magnets could be studied by quasielastic neutron scattering? The project could demonstrate that these spectroscopies could be developed into new methods to probe molecular magnetism.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.

在该项目中，由化学系化学结构，动力学机制B计划资助，田纳西大学化学系的薛子玲B教授正在研究分子磁体作为新一代信息存储和量子计算材料的潜在应用。这种材料可以具有比当前存储材料大得多的存储容量，具有显著的节能和减少的环境影响。这项研究的目标是利用光谱来探测分子磁体的性质，以帮助未来设计更好的材料。该项目是跨学科的，涵盖无机，物理和材料化学。它将为研究生和本科生提供在国家实验室进行研究的机会，并扩大他们的教育背景和培训。薛教授计划吸引那些来自低收入家庭的高中生，他们是潜在的第一代大学生，他们将学习科学。分子磁体展示了缓慢的磁弛豫和量子隧穿。一些这样的磁体已经被证明是化学量子比特的候选者。研究工作主要集中在设计和制备具有大的各向异性和缓慢弛豫的磁体。然而，人们对磁体的某些关键性质的性质，如自旋-晶格相互作用、自旋-自旋相互作用和分子动力学的理解相对较少。本项目将用多种光谱方法研究分子磁体，以回答以下问题：（1）变场变温中子非弹性散射能否揭示分子磁体中的磁跃迁和自旋-声子耦合？(2)分子磁体中的分子间相互作用能用非弹性中子散射探测吗？(3)拉曼和远红外光谱能揭示分子磁体的什么性质？(4)如何用准弹性中子散射研究分子磁体的动力学？该项目可以证明这些光谱学可以发展成为探测分子磁性的新方法。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。

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Formation of Zirconium Chloride Guanidinate Complexes from the Reaction of Their Amide Analog with CCl4

酰胺类似物与 CCl4 反应形成氯化锆胍盐配合物

DOI：
10.11862/cjic.2020.129
发表时间：
2020
期刊：
Wuji huaxue xuebao
影响因子：
0
作者：
Bhavna Sharma, Zi-Ling Xue
通讯作者：
Bhavna Sharma, Zi-Ling Xue

Direct Observation of Magnetic Transitions in a Nickel(II) Complex with Large Anisotropy

直接观察具有大各向异性的镍（II）配合物中的磁转变

DOI：
10.11862/cjic.2020.126
发表时间：
2020
期刊：
Wuji huaxue xuebao
影响因子：
0
作者：
Chelsea N. Widener, Alexandria N.
通讯作者：
Chelsea N. Widener, Alexandria N.

Manganese tetraphenylporphyrin bromide and iodide. Studies of structures and magnetic properties

四苯基卟啉溴化物和碘化物。

DOI：
10.1016/j.poly.2020.114488
发表时间：
2020
期刊：
Polyhedron
影响因子：
2.6
作者：
Bone, Alexandria N.;Stavretis, Shelby E.;Krzystek, J.;Liu, Zhiming;Chen, Qiang;Gai, Zheng;Wang, Xiaoping;Steren, Carlos A.;Powers, Xian B.;Podlesnyak, Andrey A.
通讯作者：
Podlesnyak, Andrey A.

Advanced Magnetic Resonance Studies of Tetraphenylporphyrinatoiron(III) Halides

DOI：
10.1007/s00723-020-01236-8
发表时间：
2020-10
期刊：
Applied Magnetic Resonance
影响因子：
1
作者：
Pagnareach Tin;Shelby E. Stavretis;M. Ozerov;J. Krzystek;A. Ponomaryov;S. Zvyagin;J. Wosnitza;
通讯作者：
Pagnareach Tin;Shelby E. Stavretis;M. Ozerov;J. Krzystek;A. Ponomaryov;S. Zvyagin;J. Wosnitza;