MULTIPLE QUANTUM COHERENCE ESR SPECTROSCOPY: THREE DIPOLAR COUPLED SPIN ONE-HALF

多量子相干 ESR 光谱：三偶极耦合自旋二分之一

• 批准号: 8364035
• 负责人: ARITRO SINHA ROY
• 金额: $ 0.37万
• 依托单位: CORNELL UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8364035
• 关键词: Coupled; Coupling; Dimensions; Electron Spin Resonance Spectroscopy; Funding; Grant; National Center for Research Resources; Phase; Physiologic pulse; Principal Investigator; Research; Research Infrastructure; Resources; Source; Spectrum Analysis; Technology; Time; United States National Institutes of Health; Work; cost; quantum

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. In this project the aim is to analyze the multiple quantum coherence pulsed dipolar ESR spectrum originating from three dipolar coupled spin-¿'s placed at the vertices of a triangle. While the pulse sequence was known from previous work of our group, the idea was to find out ways to separate out the spectra of different orders by using phase cycling or TPPI (time proportional phase incrementation) and to analyze them; especially plotting the higher order spectra in multiple dimensions to make the analysis of the spectrum more convenient and efficient. For all the calculations, we used the truncated secular Hamiltonian as we were working in the weak coupling limit.

该子项目是利用资源的众多研究子项目之一 由 NIH/NCRR 资助的中心拨款提供。子项目的主要支持 并且子项目的主要研究者可能是由其他来源提供的， 包括其他 NIH 来源。 子项目可能列出的总成本 代表子项目使用的中心基础设施的估计数量， NCRR 赠款不直接向子项目或子项目工作人员提供资金。 该项目的目的是分析源自放置在三角形顶点的三个偶极耦合自旋的多量子相干脉冲偶极 ESR 光谱。 虽然脉冲序列是从我们小组之前的工作中得知的，但我们的想法是找到通过使用相位循环或 TPPI（时间比例相位增量）来分离不同阶光谱的方法并对其进行分析；特别是多维度绘制高阶光谱，使光谱分析更加方便、高效。 对于所有计算，我们使用截断的长期哈密顿量，因为我们在弱耦合极限下工作。