Theory of Superconducting and Electromagnetic Properties of Some Nanostructured Materials

一些纳米结构材料的超导和电磁特性理论

• 批准号: 0413395
• 负责人: David Stroud
• 金额: $ 33万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0413395&HistoricalAwards=false
• 关键词: Theory; Superconducting; Electromagnetic; Properties; Some

This grant will support theoretical research in two related areas of condensed matter physics. The first involves the study of Josephson junctions and groups of Josephson junctions, especially when coupled to a single-mode resonant cavity. We will investigate these systems both classically and quantum-mechanically. In the classical regime, such systems are described dynamically by coupled nonlinear differential equations which we will analyze both numerically and analytically, with particular attention being paid to coupling via the magnetic field of the cavity mode. In the quantum regime, groups of junctions (whether or not coupled to a cavity) can often be treated as groups of two-level systems which can be experimentally controlled, initialized, and read out. In the second area of research, we will study the electromagnetic properties of a wide range of granular materials. Among the specific problems planned for study are plasmon wave propagation in one-and two-dimensional arrays of metallic nanoparticles, electromagnetic response of random nanocomposites of metal and anisotropic hosts, optical and structural properties of composites of gold nanoparticles and DNA, nonlinear light scattering from granular materials, forces in suspensions of dielectric particles, and electromagnetic response of cuprate superconductors arising from intrinsic inhomogeneities. These problems have the common theme that they involve the study of materials which are structured at a scale of 10-1000nm.The project will have an extensive educational impact by training graduate students, postdoctoral associates and undergraduates in a range of techniques in theoretical condensed matter physics, and will thus increase the pool of highly trained scientists in the U.S., including women and members of underrepresented groups. The scientific advances developed will be presented in courses offered at Ohio State, and in seminars elsewhere.%%%This grant will support theoretical research in two related areas of condensed matter physics. The first involves the study of Josephson junctions, coupled superconducting thin films, and groups of Josephson junctions, especially when coupled to a single-mode resonant cavity. In the second area of research, we will study the electromagnetic properties of a wide range of granular materials. Both of these systems will be studied on the nanoscale. The research will have an extensive educational impact by training graduate students, postdoctoral associates and undergraduates in a range of techniques in theoretical condensed matter physics, and will thus increase the pool of highly trained scientists in the U.S., including women and members of underrepresented groups. The scientific advances developed will be presented in courses offered at Ohio State, and in seminars elsewhere.***

该赠款将支持凝结物理学的两个相关领域的理论研究。 第一个涉及研究约瑟夫森连接和约瑟夫森连接组的研究，尤其是在耦合到单模谐振腔时。 我们将在经典和量子力学上研究这些系统。 在经典制度中，通过耦合的非线性微分方程动态描述了此类系统，我们将在数值和分析上分析，特别是通过空腔模式的磁场引起耦合的注意力。 在量子制度中，连接组（是否与腔耦合）通常可以视为可以通过实验控制，初始化和读取的两级系统组的组。 在第二个研究领域，我们将研究各种颗粒材料的电磁特性。 在计划进行研究的具体问题中，有一个和二维金属纳米颗粒的等离子波传播，金属和各向异性宿主的随机纳米复合材料的电磁响应，光和结构性能，金纳米颗粒和DNA的金纳米颗粒和非线性光散射的金属散射的金属粒子及其悬塞物的响应，DIEER and diel of DIEER of DIEER的复合物的复合材料，由内在的不均匀性引起的库酸酯超导体。 这些问题具有一个共同的主题，即它们涉及以10-1000n的规模结构的材料研究。该项目将受到培训研究生，博士后员工和本科生在理论凝聚力物理学的一系列技术中的广泛教育影响，因此将在美国的高等科学家群体中提高女性和不足成员的成员，包括女性和不足成员的成员。 开发的科学进步将在俄亥俄州立大学提供的课程中介绍，在其他地方的研讨会中。%% %%该赠款将支持在两个相关的凝聚态物理学领域的理论研究。 第一个涉及对约瑟夫森连接的研究，耦合的超导薄膜以及约瑟夫森连接组的组，尤其是当耦合到单模谐振腔时。 在第二个研究领域，我们将研究各种颗粒材料的电磁特性。 这两个系统将在纳米级上进行研究。 这项研究将受到培训研究生，博士后员工和本科生在理论上凝聚态物理学的一系列技术中产生的广泛教育影响，因此将增加美国培训培训的科学家的众多，包括妇女和人为人数不足的群体。 开发的科学进步将在俄亥俄州立大学和其他地方的研讨会上提供。***