CAREER: Connecting Bulk Properties to Nanoscale Structure: Combined Studies of Structural and Transport Properties of Strongly Correlated Oxide Materials

职业：将块体特性与纳米级结构联系起来：强相关氧化物材料的结构和输运特性的综合研究

• 批准号: 0093143
• 负责人: Valery Kiryukhin
• 金额: $ 45万
• 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: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0093143&HistoricalAwards=false
• 关键词: CAREER; Connecting; Bulk; Properties; Nanoscale

The goal of this Faculty Early Career Development (CAREER) project at Rutgers University is to investigate the effects of intrinsic nanoscale inhomogeneities on the bulk properties of several important oxide systems. These inhomogeneities appear to play a crucial role in the technologically important properties of these materials, such as superconductivity, magnetoresistance, and ferroelectricity. For this purpose, x-ray and neutron scattering techniques will be combined with bulk-property measurements. State of the art scattering techniques, such as resonant x-ray scattering, will be utilized to study the domain structure of the multiphase states, charge and orbital ordering in these states, and the nature of the structural, charge- and orbital fluctuations in the states not exhibiting phase separation. In many cases, simultaneous scattering experiments and in-situ transport measurements will be carried out to characterize metastable states and time- and history-dependent effects. The knowledge gained as the result of this project is expected to facilitate the understanding of correlated oxide materials, as well as to aid in the design of novel materials with technologically useful properties. This project also contains an integrated educational part. In particular, development of the modern science course for non-science majors and the utilization of feedback techniques in student education will be implemented.%%%As the advancement of technology pushes the characteristic device size beyond 100 nm (one hundred-thousandth of an inch), microscopic inhomogeneities begin to play a crucial role in a number of technologically important materials that include silicon-based structures used in computer chips, magnetic memory media, and ferro- and piezoelectrics. Many of these materials belong to the family of the so-called transition-metal oxides with strong correlation effects. Thegoal of this Faculty Early Career Development (CAREER) project at Rutgers University is to investigate the microscopic inhomogeneities and their connection to the physical properties of these materials. For this purpose, state of the art experimental techniques, including x-ray andneutron scattering combined with other experimental techniques will be used. The research will be carried out at the leading national research laboratories, as well as at Rutgers University. The knowledge gained as the result of this project is expected to facilitate our understanding of the materials used in modern technology, as well as to aid in the design of novel materials with technologically useful properties. This project also contains an integrated educational part. In particular, development of the modern science course for non-science majors and the utilization of feedback techniques in student education will be implemented.***

罗格斯大学的这个教师早期职业发展（CAREER）项目的目标是研究固有的纳米级不均匀性对几个重要氧化物系统的整体性质的影响。 这些不均匀性似乎在这些材料的重要技术性能中发挥着至关重要的作用，例如超导性，磁阻和铁电性。 为此目的，X射线和中子散射技术将与体积性能测量相结合。 最先进的散射技术，如共振X射线散射，将被用来研究多相态的域结构，在这些状态中的电荷和轨道排序，以及在不表现出相分离的状态中的结构，电荷和轨道波动的性质。 在许多情况下，同时进行散射实验和原位传输测量，以表征亚稳态和时间和历史相关的影响。 作为该项目的结果获得的知识预计将促进相关氧化物材料的理解，以及在技术上有用的性能，以帮助新材料的设计。 该项目还包括一个综合教育部分。 特别是，将为非理科专业开设现代科学课程，并在学生教育中利用反馈技术。%随着技术的进步推动特征器件尺寸超过100 nm（十万分之一英寸），微观不均匀性开始在许多技术上重要的材料中发挥关键作用，包括用于计算机芯片、磁存储介质以及铁电和压电的硅基结构。这些材料中的许多属于具有强相关效应的所谓过渡金属氧化物家族。罗格斯大学的这个教师早期职业发展（CAREER）项目的目标是研究微观不均匀性及其与这些材料物理性质的联系。为此，将使用最先进的实验技术，包括X射线和中子散射与其他实验技术相结合。这项研究将在领先的国家研究实验室以及罗格斯大学进行。作为该项目的结果获得的知识预计将促进我们对现代技术中使用的材料的理解，并有助于设计具有技术实用特性的新型材料。该项目还包括一个综合教育部分。特别是，将为非理科专业开设现代科学课程，并在学生教育中利用反馈技术。