Key Physics Issues of Compositionally-Tuned Correlated Materials

成分调整相关材料的关键物理问题

• 批准号: 9802513
• 负责人: Sang-Wook Cheong
• 金额: $ 27万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-15 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9802513&HistoricalAwards=false
• 关键词: Key; Physics; Issues; Compositionally; Tuned

9802513 Cheong This proposal by Professor Sang-Wook Cheong of the Department of Physics of Rutgers University describes a multifaceted research program in solid state physics and materials science. The research is largely concerned with the behavior of materials which exhibit superconductivity or giant magneto resistance (GMR). Four specific topics will be studied: the nature of the charge and spin stripe correlations in doped Mott insulators; the nature of the microscopic mechanisms that underlie the physics of Mn perovskites with respect to their GMR behavior; the half- metallic properties of the perovskites will be investigated; and a study will be initiated into the properties of magnetic systems with topological frustration. These topics are currently at the forefront of contemporary research in solid state physics and the results of the work will have implications in the technological application of the various materials studied. This research will be performed by the PI together with his own research team as well as in collaboration with others who are equipped for performing neutron scattering, microstructure characterization, crystallographic, and photoemission investigations. %%% This proposal by Professor Sang-Wook Cheong of the Department of Physics of Rutgers University describes a multifaceted research program in solid state physics and materials science. The research is largely concerned with the behavior of materials which exhibit superconductivity or giant magneto resistance (GMR). Four specific topics will be studied: the nature of the charge and spin stripe correlations in doped Mott insulators; the nature of the microscopic mechanisms that underlie the physics of Mn perovskites with respect to their GMR behavior; the half- metallic properties of the perovskites will be investigated; and a study will be initiated into the properties of magnetic systems with topol ogical frustration. These topics are currently at the forefront of contemporary research in solid state physics and the results of the work will have implications in the technological application of the various materials studied. This research will be performed by the PI together with his own research team as well as in collaboration with others who are equipped for performing neutron scattering, microstructure characterization, crystallographic, and photoemission investigations. ***

小行星9802513 罗格斯大学物理系的Sang-Wook Cheong教授的这一提议描述了固态物理和材料科学的多方面研究计划。 该研究主要关注表现出超导性或巨磁阻（GMR）的材料的行为。 将研究四个具体的主题：掺杂莫特绝缘体中电荷和自旋条纹相关性的性质; Mn钙钛矿物理学的微观机制的性质;将研究钙钛矿的半金属性质;以及将开始研究具有拓扑挫折的磁性系统的性质。 这些主题目前处于当代固态物理研究的最前沿，工作结果将对所研究的各种材料的技术应用产生影响。 这项研究将由PI与他自己的研究团队一起进行，并与其他配备中子散射，微观结构表征，晶体学和光电发射研究的人合作。 罗格斯大学物理系的Sang-Wook Cheong教授的这份提案描述了固态物理和材料科学的多方面研究计划。 该研究主要关注表现出超导性或巨磁阻（GMR）的材料的行为。 将研究四个具体的主题：掺杂莫特绝缘体中电荷和自旋条纹相关性的性质; Mn钙钛矿物理学的微观机制的性质;将研究钙钛矿的半金属性质;以及将开始研究具有拓扑挫折的磁性系统的性质。 这些主题目前处于当代固态物理研究的最前沿，工作结果将对所研究的各种材料的技术应用产生影响。 这项研究将由PI与他自己的研究团队一起进行，并与其他配备中子散射，微观结构表征，晶体学和光电发射研究的人合作。 ***